Passkeys are not a trap

5 days ago (scotthelme.co.uk)

I don't know enough to argue about whether passkeys are a trap or not, but I do know as a user that they appear to be a confusing mess.

When a website prompts me to set up a passkey, depending on the device I happen to be using at the time it could end up going to Google password manager, Samsung password manager, iCloud Keychain, or Windows somethingorother.

What happens when I go to the same site on a different platform? What if I can't use cross-device authentication because I'm on a locked-down work machine or one that simply doesn't have bluetooth? What if I want to consolidate them all in one platform just for the sake of being organised? What if I lose or simply don't have the device with a certain passkey near me?

I don't have the time or patience to work out any of that, which might absolutely be a 'me' problem, but TOTPs are pretty sodding frictionless in comparison. Scan QR in my chosen manager; type number into website; done. Why are passkeys better?

  • I thought "Passkeys are a trap" was going to be about this usability nightmare. Some sites, once connected via passkey, make it all but impossible to connect in another way. Some support multiple passkeys. Some do not. Some support passkey or something else. Some do not.

    The idea and protocol are pretty solid, though we're back to a "biometrics as password" problem in many device flows, but every time I'm urged by a site to convert to a passkey, I wonder "is this site the sort that would screw this up?"

    So far, it's about 30% of sites screwing it up...

    • This is the issue.

      I can’t adopt Passkeys if I’m not certain they’re going to work as well as my password manager and Authenticator app, which is to say 100% of the time.

      When sites ask to set up passkeys, it’s usually native passkeys (especially on iOS). And figuring out how to get the flow to set up a LastPass key by default seems unusually difficult.

      I also use a MacBook, windows desktop, an iPhone and iPad. I use Firefox, edge, brave across these devices.

      When I say “passkeys are a trap” they are a usability trap where no one can attest with certainty that I won’t wake up in a painful situation because I decided to adopt passkeys.

      89 replies →

    • Yep, any time you're asked to set up a passkey it feels like Russian Roulette with future access to that account. A year or so ago, a site I relied on started enforcing biometric passkey enrollment. Without thinking about it I logged into the site on my phone and enrolled there, but unfortunately (a) that meant it didn't get registered as an "other device" in the internal system, and (b) the site didn't work correctly on mobile devices (legacy system). So logging in on a desktop would then demand that I activate the passkey, but of course the passkey was on the phone. No way to access it, and the site didn't offer me the QR code / bluetooth method. I don't remember exactly why, but it just didn't work - probably had something to do with it not liking Firefox on Linux or something.

      And to add insult to injury, it wasn't even a single factor login the way passkey advocates promise. The site still demanded a normal password to log in! It was actually 3 factor authentication; something I know (the password), something I have (the passkey), something I am (the biometric).

      This wasn't some random website that didn't matter made by nobodies. It was a US government website for managing grant money.

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    • Supporting multiple passkeys should be a minimum requirement for every Passkey implementation. It's generally worth naming and shaming the websites that don't implement that correctly. People want backup passkeys. People want both iOS keys and Windows keys for the most convenience.

      My general advice for non-technical users that seems to work pretty well is "sign up for new sites with passkeys on your phone" because most non-technical people trust the password manager ecosystem on their phone, have some amount of multi-device sync already established, and the QR code started Bluetooth LE flow on desktop/Windows PCs for sharing passkeys works easiest with phone passkeys.

      (I run a tiny site that is Passkey Only for login and it's been interesting providing technical support for it. One of the biggest recurring issues at this point is nothing in the Passkey flows themselves but the fact that the Facebook in app browser does not support Passkeys for a number of presumably security reasons, plus Meta being jerks, and having to remind new users to "Open in External Browser" before signing up/logging in when posting links to the site in Facebook.)

      > The idea and protocol are pretty solid, though we're back to a "biometrics as password" problem in many device flows

      It's still just biometrics as "device PIN". The crucial difference remains that the biometric data never leaves your device. To support Passkeys the remote website only ever sees your Passkeys' public keys, they never see biometric data, they never have a chance to store biometric data in a database to violate PII/HIPPAA/etc standards when it inevitably leaks to "hackers" (or gets sold to the highest bidder).

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    • My takeway from “Passkeys are a trap” is that there are like four different approaches to something that everyone just calls “passkeys”, and they are not the same. For example, some are portable and some are not.

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    • And they always ask right when logging in which is the absolute worst time to ask anything.

      If I'm logging in to your app or service it's because I want to do something. Throwing up a "hey would you like to setup this complicated auth thing before you're able to do anything else?" Is annoying at best.

      Then they normally follow it up with a tutorial that blocks the part of the app you need, and a full screen modal to subscribe to their newsletter, and a cookie dialog asking to let you track them, and a popup asking you to rate them on the app store, and...

      Only once I've beaten away all the interruptions am I finally able to use the damn app.

    • > Some sites, once connected via passkey, make it all but impossible to connect in another way.

      That's the issue I had with Okta a few years back. I used a password then later added a passkey through Bitwarden on my work laptop. Bitwarden hadn't yet implemented passkeys for mobile.

      I went to authenticate through Okta on my work phone. It prompted me for the passkey. Since mobile passkeys didn't exist, I got stonewalled. I had to make a blood sacrifice just to get Okta to allow password access again.

    • This is why I don’t like passkeys. I’m surprised the “use site from multiple devices” use case isn’t more common.

      Am I nuts for accessing a site from both my mobile phone as well as from the multiple computers I use?

      This also gets super messy when combined with multi-site auth services like id.me where I need to use the same login to access very diverse sites and services from multiple computers (eg, irs.gov, treasurydirect.gov, disburser.treasury.gov).

      1 reply →

    • Some of them support multiple passkeys and somehow I've now got three different ones for the same site in my password manager...

  • Same. I don't understand it, and there is enough conflicting information (See this article pair as an example) that I suspect it's not something where I just need to do more reading. I suspect there's something fundamentally confusing, and subjectively-interpretable about this.

    My suspicion: There is a significant chance I will lose access to one or more account by doing this, so I'm not going to until the air clears. I don't trust the motivations of the services pushing it.

    • This may or may not help depending on how technical you are, but at the core a passkey works through public key cryptography, like SSH keys work. Setting up a passkey with a site involves sending a public key to the site, which they store as being owned by your account. Then, to sign in, they use your public key to generate a challenge, you use your private key to solve the challenge, and you respond proving you have the corresponding private key.

      This means you never send your private key to the site, so if their database is compromised they only get a public key, which can’t do anything (it is public, after all)

      No amount of phishing can get you or your client to hand over your private key, because there is no use case where that is required. There is no possibility of MITM, since your private key is never sent anywhere in any situation.

      As for getting locked out of your account, losing your passkey would be the same as losing a password. You would need to follow the site’s password reset flow, and if you can recover from a lost password, you can recover from a lost passkey.

      27 replies →

    • It doesn't help that the primary benefit we get from passkeys, in exchange for a lot of pain and fragility, is that phishing is harder to pull off. That's a big deal for a lot of people, but frankly, I'm not one of them. I already know not to click on links in emails.

      I've never fallen for a phishing attack and any attack targeted and sophisticated enough to catch me is probably going to be sophisticated enough to steal/hijack a passkey anyway. In the extremely improbable event that I did get phished and somebody got into my account somewhere, they'd only have access to that one account because unlike most people I don't re-use passwords and recovery would no more complicated than contacting customer service and resetting my password with them.

      Considering the horror stories of people who been screwed by using passkeys, I'm sticking with "not worth the trouble"

    • The easiest way to think of it is they are like ssh key auth where the keys are stored in your password manager.

      I have no doubt users will get confused about which password manager they have their passkey stored in, but these are the same users who don't know what a password manager is so they share a password across everything and get hacked regularly.

    • With the exception of general-purpose authentication services like Microsoft Entra ID where organizations can set pretty much arbitrary authentication requirements, I've yet to encounter a site where merely setting up a passkey disables other forms of authentication.

      The benefit of adding additional authentication methods without disabling others is limited, of course, but it can still be useful where, e.g., you're comfortable logging in using a password manager on your own devices but want to use an iPhone or YubiKey to log in from public computers.

  • The defining feature of passkeys is that they're stored in your password manager, and you can't read them, so you can't be tricked into typing them into the wrong web site.

    Most password managers don't even allow you to export/backup the passkeys yourself. (Bitwarden is an exception.)

    Instead, password managers support a finicky app-to-app transfer protocol called "Credential Exchange Protocol" (CXP), where you install two password managers at once, and they convey your passwords + passkeys, without ever generating a file that you can read. (And Microsoft's password manager doesn't even support CXP yet. As of today, you can only do it on Android and iOS.)

    Many people read that and say, "see, that's why I'm never going to use passkeys! I'm safer managing my own backups, and I'm too smart to be tricked into copying and pasting my password to the wrong site." But they're wrong. You are not too smart to be tricked. Nobody is.

    If you use the same cloud-sync password manager everywhere, passkeys just work. If you don't, you'll have to use Credential Exchange Protocol to transfer them, which is a hassle.

    It’s up to you to decide whether protecting yourself from being tricked into exporting your passkeys is worth sacrificing your ability to read them.

    • > The defining feature of passkeys is that they're stored in your password manager, and you can't read them, so you can't be tricked into typing them into the wrong web site.

      That's the biggest issue.

      Haven't been tricked so far. On the other hand, I've had a couple of accounts locked because "we don't like your ip", "we want your phone number now", or "we want to send a push notification/text to the phone that just died".

      Why would I trade control over my credentials for some potential security gains, while introducing new dependencies on Google, Apple, or whoever runs my password manager - and the very real risk of being locked out of all of my own accounts?

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    • > You are not too smart to be tricked. Nobody is.

      Maybe, but most websites I really dont care if my account gets hacked. I care way more about being able to login conveniently. Im just as frustrated with seemingly every single website wanting 2fa doing a 2fa check every week or less.

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    • > But they're wrong. You are not too smart to be tricked. Nobody is.

      If my password manager is entering my password for me, so how can I be tricked? That's the superpower for passkeys, right? It also applies for plain passwords. Infact, if a login page looks familiar, but my password manager doesn't show any matching credentials, that throws up red flags for me, because I only use my password manager.

      6 replies →

    • > Many people read that and say, "see, that's why I'm never going to use passkeys! I'm safer managing my own backups, and I'm too smart to be tricked into copying and pasting my password to the wrong site." But they're wrong. You are not too smart to be tricked. Nobody is.

      It is not remotely difficult to not fall for phishing attacks. I think I've seen one in my entire life which was actually well crafted such that a person might fall for it even if he was paying attention. One. Everything else is the lowest effort slop where all you need to do is hover over the link to see "this does not in fact go to microsoft.com like it claims".

      5 replies →

  • Randomly generated strong passwords for all practical purposes are just as good as passkeys and keep you as the user in control. If you really need to copy/paste between a laptop and mobile or give it to a friend/family member, you can.

    What do passkeys offer users that rand strong password + password managers don't?

    • Bull. People need to stop repeating this.

      They have to be transmitted. They (or their hash) have to be stored. And so so many get that wrong.

      There is nothing to prevent you from entering your super secure unique password on the wrong site if you get phished.

      Passkeys don’t get transmitted. They’re used for cryptographic signing.

      Passkeys can’t be entered on the wrong site, the sites they work on is an inherent property of the key.

      You can’t store a passkey wrong on the server, it’s a unique public key. If your entire database is stolen, it’s useless. No one else can login with your credentials because they don’t have the private key.

      Unique strong passwords, TOTP, 2FA, one time sign in emails, none of those offer this stuff.

      Passwords are fundamentally broken. They cannot be fixed. Cryptography is the solution in passkeys are the implementation.

      96 replies →

    • They are tied to the issuing domain and the system that carries the passkey will refuse to present it to any other domains. It’s more or less impossible to fall for phishing or a spoofed site. Your password manager may have similar functionality for automatic filling of forms but less sophisticated users can often be tricked into providing passwords via copy and paste.

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    • As I understand it, in theory, there is no "secret" exchange over the network with passkeys, once they are initially set up (one side sends a challenge to decrypt, and the challenge is one-time use. The decryption all happens locally.) And so they aren't as vulnerable to phishing or other common ways to steal passwords (such as key loggers, which don't even involve the network.)

      But in my opinion, the solutions that passkeys provide come with the costs that are being discussed here, and I haven't found the trade-off worthwhile.

    • A decent degree of phishing protection. And passkeys are not vulnerable to an attack that can transiently read server memory.

    • --------- Oct 14 - 12:30pm... --------- There is a wall of text below your question and _none coherently, concisely answer your question: "What do passkeys offer users that rand strong password + password managers don't?"

    • Passwords always risk a transferrable oops: "Hi friend, this is the bank calling. We've got a big issue: what's your password so we can fix it?"

    • > What do passkeys offer users that rand strong password + password managers don't?

      Wrong question.

      Users don't use good passwords or even password managers. Users reuse passwords.

  • My thoughts exactly.

    Anything that randomly makes a Windows 8-style popup offer to keep my login credentials safe makes me want to run farrrrr away.

    The vibe of the original criticism, even with its technical flaws was this: are passkeys - as a standard, and a user interface - vulnerable to corporate capture? I think passkey defenders are focusing far more on the theoretical technical superiority, and ignoring how instinctively alarming the average implementation is.

    We face a lot a lot of attempts to capture our data, and passkey feels like a new frontier.

    For me, I know exactly where I am with my password manager & TOTP. I think the current confusing interface of passkeys will make me less secure rather than more, so I've not invested the time to think about how to use them.

    • Agreed. They put someone else between you and your access, between you and your security.

      Lets give the guys at the Home Depot all the keys to our super secure house locks. Any time you want to get in, just roll down to one of 5 convenient locations, authenticate with the HD, and they will issue you a one time entrance pass to the house. Easy.

      Bullshit.

  • Definitely not wrong here. It is a confusing mess for most people. Thankfully, for folks all in on the Apple ecosystem, it should be pretty decent of an experience. Everyone else? not so much.

    • I think this is exactly the "Passkeys are a trap" argument though right? If you lock yourself into a single vendor, everything is easy and beautiful. If you choose a diverse set of vendors, it sucks so much more than passwords and password managers ever did.

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    • As a Bitwarden (and Vaultwarden) user on Mac/iOS/Safari, Linux/Firefox and Android I have had zero issues with passkeys since I started using them a few years ago.

      The first two accounts I switched over to passkeys were my Nintendo and Playstation Accounts as it made sign-in much smoother.

      I now use passkeys pretty much everywhere I have the option (at least on high value accounts such as Amazon) and I have not once had an issue. Not having to use a TOTP (or worse an SMS or email based one use code/link!) is much nicer in my personal opinion.

      Some sites have a much better designed on-boarding process than others I 100% agree there. I find the sites that do a poor job with their passkey enrolment are the same sites that also did a terrible job of 2FA/MFA setup as well though.

      One blessing with passkeys is since I set it up for my mother with her Amazon account she has not once had to ask me to help me reset her password. At least once every 6 months I would have to help her sort things our as she would forget it, reset it and then forget what she reset it to and can't reset it again as she hadn't clicked to update the password in her password manager so it had an old or incorrect password, etc. Always a pain to sort out. Not happened once since switching her to a passkey which is wonderful for me.

      Also it is essentially impossible for her to use the passkey on a fake site. Multiple times she has fallen for phishing emails with realistic looking site logins and she would just blindly enter her username and password as many elderly people do.

    • Both of my systems are apple, one has a Work Apple account and one has a Home apple account. How do I log into website X with 1 identity WITH FIREFOX? (people are going to jump through hoops when they find out my work laptop blocks mozilla services when I can just use a TOTP token on my phone and everything works.)

      1 reply →

    • >Thankfully, for folks all in on the Apple ecosystem, it should be pretty decent of an experience.

      How many people are for now and forever more all in on the Apple ecosystem. You never have to login on another non Apple device ever?

      2 replies →

  • I agree and I have a good example.

    At my work we are forced to use passkeys internally and it's fine with me.

    At some point in the past, due to the constant nagging I set up a passkey on my GitHub account.

    I needed to sign in to work's GitHub account, so unknowingly (since there's no SSO option there) I just clicked on "Sign in with a pass key". It didn't ask for my username, just gave me an option to scan QR code. And I did because work's pass key is set up on my personal phone. Then I noticed that it's trying to sign in with my personal GitHub account. It's good that I don't have anything sensitive on there but I really wouldn't want to sign in on my personal account on my work's laptop.

  • This, I've been an engineer for 25 years and I hate passkeys. I have a work laptop and a home laptop and I connect to some websites from both and I... it's just a mess.

    • Same. Fully agreed.

      New and interesting ways to get locked out of your system.

  • So far, I've had a hard time setting up an iCloud passkey on desktop Windows. Windows Hello keeps intercepting most attempts at a passkey, and 1Password will usually step in otherwise. The UX around it continues to be baffling to me.

    At least there's a dedicated migration protocol for passkeys, but I'm not super stoked about how basic Apple's password management is, and how few fields there are for each profile.

    But I also feel like it's time to retire my YubiKeys ...

    • You act as if the experience on Windows is the point of Apple's password manager. I'm not surprised the experience is pretty bad -- as far as I can tell, accessing the passwords and notes is pretty much the only thing you can really do on Windows, and the user experience is significantly impaired compared to Apple devices.

      (For example, it only stores the passwords in memory and never persists them locally in any form, because there's no way to secure that, so it has to redownload them from scratch every time you open the app. It also only supports proper Windows Hello PINs rather than normal account passwords, because that's the only way to get proper hardware backed cryptography locked behind authentication, etc. It's a mess)

  • TOTPs are already not that great in my opinion. It's like democracy: the least bad option. It's a decent trade-off between convenience and security, so I'll stick to unless there are good reasons not to. Passkeys have managed to make that experience worse, with a very large potential gotcha in the future, while not introducing any improved security I see why I should care about.

  • Also consider the case where you use Google password manager and your Google account gets locked for any (or no) reason. It's unclear whether you can even still use your passkeys, much less migrate them away.

  • > Why are passkeys better?

    Passkeys provide perfect protection from phishing attacks, since it's impossible to send a passkey to the wrong domain. That's a huge improvement over TOTP.

    Re: it being confusing where they're stored, I agree. The solution is to make sure you store your passkeys in your cross-platform password manager. The experience can be confusing though. In Chrome I've found that by default when creating a new Passkey Chrome offers to store it first. But if I click cancel, I'm then given the option to store it in 1Password where I want it.

    • What if the website loses its domain? There are plenty of examples of dickish domain registries and registrars, domain holders getting phished, etc. How do you reset it to the new domain?

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  • They give me OpenID vibes, and non-tech people can't understand what they are.

    Heck, as an engineer even I don't get them. What ever happened to password + yubikey?

  • Still amazed that on HN of all places people are confused by or having problems with passkeys. I have yet to see any of the issues people are guesstimating could become problems and adopted on day one.

    I have had two poor experiences, where passkeys I set up at one point stopped working and I had to generate a replacement, but this was not a problem because I have yet to come across a site that didn’t continue to offer other means of logins.

    I don’t see anybody complaining about the login-via-emailed-link which seems to be the much more common trend these days and which I really dislike because it introduces an unwanted delay in login (and I have come across many sites for which this is the only means of logging in).

  • > but I do know as a user that they appear to be a confusing mess.

    I'm a very tech savvy person, and understanding the ins and outs of passkeys has been a time investment, and that's the problem. Technical and security merits notwithstanding, they're a confusing mess. I understand how they work, but what I don't really understand, is how to recover when they don't work.

    Selfishly, I end up being tech support for my extended family, and I don't have the stamina to try to explain to them how this works.

  • > When a website prompts me to set up a passkey, depending on the device I happen to be using at the time it could end up going to Google password manager, Samsung password manager, iCloud Keychain, or Windows somethingorother.

    This is the same problem we've had for 20 years with password managers, though.

    The solutions are mostly the same as well (with the change to a QR + BLE based mechanism over manual transcription to go cross-device, and a protocol to support moving passwords and passkeys over to different software rather than using a plaintext password CSV export).

    Many password managers also manage passkeys (and were managing TOTP before).

    • A password is not like this because a password is a simple keyboard input by default. It only becomes a password manager if you make the active choice to install a password manager, and then it's your fault if you don't grok your own chosen password manager. Passkeys use something password-manager-esque out of the box, so they have this problem.

  • Every time I've used a passkey with a site was in addition to the regular user password. So like a cached auth saved in the phone secure storage, protected by my PIN/fingerpring.

    If it gets lost for whatever reason, I don't care, I will login again with regular username/password.

    So as long as you also have a regular username/password login, phone passkeys are great time savers.

  • It almost seems like instead of passkeys in their current state we just need SSH keys but with added website verification.

    • Passkeys in their current state essentially are just SSH keys with added website verification.

      A lot of the "slippery slope" confusion in the past couple of articles has been that this "cheap SSH key" approach was built on top of the same standard for "expensive hardware key" (Webauthn). This is great because it means a rich backwards compatibility story across a long history of devices and "expensive hardware key" remains an option for Passkeys. This is unfortunately confusing because Enterprises still need Webauthn for "only expensive hardware key" usage so need options in the standard like "Attestation" which specifies things like "exactly which expensive hardware key vendor was used".

      People see this confusion and think it leads to a slippery slope of attestation being required "in the future", but the reality is more that attestation and things like it were required in the past and are optional now because we realize "cheap SSH keys" are good enough for most users (with some standardization and shared "branding").

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  • > What happens when I go to the same site on a different platform?

    You click the "log in with QR code" button, scan the QR code, and authenticate using your phone.

    Unfortunately that only works from phone (and watch) to computer. If you don't have the passkey available, you click "forgot password" and set a new one, same as with a password.

    • You can use it computer to computer, too, as long as the laptop has a camera to read QR codes.

      In theory phones and watches could implement the other direction and generate the QR codes, there's just less pressure on the ecosystems to make that easy to do so it's not there in practice today.

      1 reply →

  • So in my own experience, the same tool I use for TOTP is the one I use for passkeys, suggesting it’s at least possible for passkeys to be as frictionless as TOTP.

    On the rare occasion I’m logging into a device that isn’t mine, that doesn’t have my password manager on it, scanning a QR code from a device that does have my password manager on it has been enough to get me in. Without sharing any secrets with the foreign device, incidentally

    So I’d wager your concerns are valid and are likely to be addressed over time, as this stuff develops rapidly. It might even be better in your scenarios already

    Lately it has been a tap-tap operation to enroll a passkey. Sweetwater.com surprised me with it the other day. I was done in seconds, and now I can log in without even having to enter a code. Face ID handles it for both iCloud Keychain and Bitwarden

  • Add to my frustrations the many domains of places that don’t share a passkey. (I kinda understand it but not fully)

    Amazon.com, UK, DE, JP, all need different passkeys. Yet my password and TOTP works across them all seamlessly.

    And then some pass managers will only store ONE passkey for that login/password.

    Its mighty frustrating and while I have been told and see the biometrics make it more secure…

    It’s a pain in the arse to now have a stack of domains each in my password manager when searching.

    :( In security, you forgo SO MUCH convenience.

  • I've been working on passkey-adjacent systems recently (including systems integrating the physical passkeys developed by a team in the same open-space) and I don't feel like the passkey industry has answers to that, in terms of ease of use/usability. Right now I'd say between an OTP on a phone and physical passkey is that it might just be quicker to plug in the passkey and push the button (if applicable) than fishing my phone out of my jacket, unlocking it, launching the app and typing the code...

  • I’m not necessarily a security expert, but my understanding is that passkeys are better in two (or more?) fundamental ways.

    - it is linked to a domain, as the article states, which makes it less likely to “exposed” in phishing attempts - it is a challenge system, essentially a public private key system, so the private key never leaves your device. Kind of like tls/https. Which means that even if bearer/login token is lost, your “password”(private key) isn’t lost. - also, an obvious bonus is that you get a really long “password” which is practically impossible to guess

    Sorry if any of my terminology is wrong here.

  • >What happens when I go to the same site on a different platform?

    Scan the QR code with your phone.

    >What if I can't use cross-device authentication because I'm on a locked-down work machine or one that simply doesn't have bluetooth?

    Most devices today ship with Bluetooth and even locked down machines support using your personal phone to authenticate.

    >What if I want to consolidate them all in one platform just for the sake of being organised?

    Then do that. Use whatever your phone uses.

    >What if I lose or simply don't have the device with a certain passkey near me?

    Then you will need to use a fallback authentication mechanism or will need to wait until you can get the device. TOTPs have the same issue.

  • Passkeys only make sense if every user has a open source Fido 2 hardware based USB passkey (like yubikey but opensource).

    Then the user still controls the passkey using a password and then everything else flows from that.

    • Passkeys only make sense if multiple passkeys are supported. What if I lose my Fido key? One issue here is that passkeys don’t have a clear role. If they are replacing passwords, only, then they are 100% an improvement even when not hardware backed, but you still need 2fa. If they are hardware backed, you probably don’t need a second factor and different sites see different roles. Assuming I can setup a backup key, hardware backed covers all of sites’ misconceptions, though.

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  • I think the core problem is they’re called passkeys and evangelized as a replacement for passwords, which makes people think they’re like passwords or like keys—secrets we’re responsible for not losing—whereas actually they’re like session cookies. They’re a fast path in that you’re meant to be able to create, delete, and even clear all of at will, with no penalty but that you’ll have a fussier login next time. They sure do suck as an only way in, they’re not even meant to be able to do that.

  • It's not even clear what happens with Google Password Manager. It might go into your Google account or your local device. I somehow ended up with a mix of both.

  • Sites should support multiple passkeys, and allow you to select between them if more than one are available.

    I've seen this work on both Windows and iOS, where I have sites set up to use passkeys from multiple sources (Yubikey, Windows Hello, Apple Passwords, Microsoft Authenticator app), but I've also seen it not work, so there must be something the site has to do to make this possible.

  • This is more an indictment of the current state of password managers and the tension between them at OS-level and browser level

  • Initially I've also struggled with this, and the mental model I found most useful is that a passkey is used to log in into that account from that device.

    If the website doesn't allow you to add multiple passkeys then that's bad ux and that's on them.

  • Yeah, there needs to be a way to link password managers to share passkeys, and also to share passkeys between people. There are also a lot of great features that could be implemented with passkey sharing too, like revocation, time limits, or capability limits.

    • Adding the kind of sharing it sounds like you are describing would just shift the attacks to that new attack surface. The attackers would basically try to trigger and intercept those shares.

      If machines, browsers, phones etc are set up properly (yes, I know, big ask, especially with the confusion surrounding this, so I acknowledge the caveat), then the vast majority of passkey requests will go right into the preferred method (i.e. 1Password, Bitwarden, even Apple, browser of choice, etc). And most of those now will allow that passkey then to be used on a different device if signed in and synced.

      I have found it to work pretty well with a password manager. I would suspect OS level passkeys would be much less "portable", especially across different manufacturer devices, like Mac/Windows, or even Windows/Android, etc. Which is why I waited to start using passkeys until I could use a password manager to store them, and I turned off all other passkey storages (same as I did for password storage before).

      1 reply →

  • I also don't understand why this was the only real downside off TOTPs brought up. "What if you input it in the wrong site?". Surely the exact same thing can happen with passkeys?

    • It can’t, because passkeys are bound to specific domains and you simply aren’t given the option to log in with a passkey on the wrong domain.

  • I don't think I have seen a case where using a passkey stops me from using my password on another device/platform that doesn't have access to the passkey.

  • > it could end up going to Google password manager, Samsung passWord manager, iCloud Keychain, or Windows Somethingorother.

    Using all that is just asking for trouble. Turn all off except one.

  • TOTP is phishable. The push to get away from TOTP is driven by phishing.

    I've done authentication projects for financial institutions that were actively targeted by phishing attacks, and it is difficult to mitigate TOTP phishing. Defeating TOTP is very much in the standard playbook for high-dollar scam operations.

    • The objection here isn't to something that uses public keys instead of TOTP. It's that they added support for remote attestation to passkeys, which an enormous red flag and enables That Which Is To Be Prevented, i.e. permanently entrenching the incumbents because many third parties won't support new device makers with no user adoption yet and users won't adopt a device that won't work with many third party services.

      Moreover, the large majority of ordinary people are going to use whatever comes with their phone anyway, which can then lock the key in the device's secure processor by default independent of remote attestation. So then it's not getting you anything for those people and the primary thing it does is to impede Linux Girl from using Linux and anyone new from ever trying to create a competing mobile platform or even a usable non-Google fork of Android.

      The obvious way to satisfy people is to remove support for remote attestation from the spec.

      9 replies →

  • Security matters, users who want choice have to take responsibility, users that don't can just use Apple.

    "What happens when I go to the same site on a different platform?" = "If you meant device, then Chrome has a feature to allow you to use a different device such as a NFC YubiKey"

    "What if I can't use cross-device authentication because I'm on a locked-down work machine or one that simply doesn't have bluetooth?" = "Good, Passkeys are doing their job correctly and you cannot export credentials"

    "What if I want to consolidate them all in one platform just for the sake of being organised?" = "Then log in and add more passkeys to things rather than copy-pasting passwords everywhere"

    "What if I lose or simply don't have the device with a certain passkey near me?" = "You should have multiple passkey's or use the various cloud versions that exist"

    • That it’s possible to know the answers to these questions doesn’t mean the system is good. This is a level of complexity that most people simply do not have the time or bandwidth for.

      1 reply →

    • >>users who want choice have to take responsibility, users that don't can just use Apple

      I'm perfectly happy to take responsibility — when using a well-designed system that isn't a massive pain-in-the-arse up front designed for vendor lock-in and to penalize small vendors.

      Criticizing the new system isn't avoidance of responsibility, it is demanding a product that is worth using, i.e., NOT designed for the manufacturers to extract more money from us without providing more value or locking in their market position, but designed to be actually useful to the people who will actually use it.

      EDIT: add last 8 words

"...if attestation is the thing you're worried about, the post's own recommendation pushes you towards attestation rather than away from it!"

It is plainly obvious that the worry isn't attestation per se, it's the restrictions that attestation may in the future require when they turn the dial on restrictiveness up, that was extremely clear to me from reading the first article. If you can get attestation without those restrictions, "sure, why not", and a Yubikey seems like a way to do that which could avoid those restrictions. Most of this article makes sense, but this particular line makes me wonder how the author got it so far off the mark.

They also did nothing to quell my fears that they will in the future use passkeys to prevent people from using software they can modify themselves by saying "...the guidance for consumer sites has been to not even request attestation for years now." as if everyone always followed the guidance, and as if there aren't tens of thousands of managers that think their case is special and they really do need the extra control because they're a bank or handle copyrighted content or have PII or PCI and feel extra risk-averse today.

I don't know if they failed to do so because they can't (and this is a valid fear of the original author) or if they just are bad at reading the room at what the concern is and vastly overestimate how much people trust companies to always have their best interests at heart.

What I am getting from this, though, is "If you authenticate with a yubikey then that's attested, so they can't use attestation through passkeys to make sure your OS and browser aren't modified", and I'm not sure if that's the correct take away or even a correct statement.

  • > If you can get attestation without those restrictions, "sure, why not", and a Yubikey seems like a way to do that which could avoid those restrictions.

    Remote attestation is never to your advantage. To do it at all, they have to restrict you to a specific set of device manufacturers and yours may not be on the list.

    Then, what does it get you? Google-approved Android phones are allowed, but any attacker can trivially get one of those so knowing it's that type of device is completely worthless. All it does is prevent you from using some other type of device.

    Notice that this is different from keeping the key in a HSM, which you can do without remote attestation and without the other side having to do anything at all.

    Worse, the "approved" devices often have worse security than the one you want to use, e.g. using a Yubikey as your HSM will generally be better than using a phone which has orders of magnitude more attack surface and is constantly connected to the internet, but the phone is way more likely to be on the approved list than the Yubikey.

  • Yeah this article is confusing for me. The one a few days ago was basically saying "this is a slippery slope", which the post today acknowledges, then goes on to say "These passkeys don't give websites an attestation statement at all, and though a site can ask, what comes back is none" as though it invalidates the post a few days ago.

    The whole point is that once everyone is accustomed to passkeys, they ARE going to ratchet it up to "you need attestation".

    This is the browser wars all over again. Google spent something like 20 years winning the browser wars, and once they felt snug and secure, slowly started eroding users' abilities to control the content they see (making features adblock relies on increasingly ineffective).

    At the same time the current authentication horseshit of the internet in 2026 is awful. I routinely spend 3+ minutes trying to log into a site - first it blocks logins because of my VPN, then it requires a password reset, then it requires me to login with new password, but then it needs email verification, but then I don't get the email so I have to click resend, then I type in the verification and then it asks for blah blah blah.

    I am grateful that LLMs are going to be doing 95% of my browser usage very soon.

    •   I am grateful that LLMs are going to be doing 95% of my browser usage very soon.
      

      The cognitive dissonance is deafening. The "current authentication horseshit of the internet in 2026" is entirely because of LLMs.

      1 reply →

Do not handover your identity, or verification of it (as the current case is) to anyone else, irrespective of the benefits, including the security aspect.

---

The author has strong incentives for the success of passkeys.

1. Scott Helme is founder and CEO of Report URI, and Companies House records his ownership at over 25% and up to 50%. Report URI markets a "Passkeys Protection" offering, giving him a commercial interest in services for passkey adopters.

2. His WhyNoPasskeys.com campaign pushes websites to adopt passkeys, is sponsored by Report URI, and promotes its passkey protection services. The "Passkeys Are Not a Trap" article also carries a Report URI sponsor banner.

3. Troy Hunt, Helme’s Report URI business partner and investor, joined 1Password’s advisory board in 2020; Helme has also appeared in Hunt’s 1Password-sponsored content. That establishes an indirect vendor connection.

  • Virtually every authority on passkeys is going to have an industry connection. Just like how most climate change authorities receive funding to do climate research, how SEC investigators typically have backgrounds in banking, open source military analysts are veterans, etc.

    It's not because people are bought by the powers that be, it's the way the world works. People enter the fields they have expertise in.

    • The guy literally owns a business in this space and has a huge financial incentive to push passkey adoption. Technically he has an "industry connection" just like millions of other people who work in tech and happen to know about passkeys through other work, but conflating the two is wildly misleading. His perspective is as far away from unbiased as possible.

      Research funding is hardly perfect, but most of the people studying climate change are doing actual research and trying to draw evidence based conclusions that hold up under peer review. Their incentives are not the same as a tech founder who could potentially make generational wealth if one particular outcome is realized.

      1 reply →

> [Attestation] say nothing about your OS, your browser, your extensions, whether your phone is rooted or jailbroken, your firmware version, or even what colour it is.

Largely false. The Pixel verifies the OS and will reveal `verifiedBootState != Verified` on GrapheneOS in the attested passkey at registration, which websites may choose to reject. Apple Silicon has an undocumented SEP which prevents Asahi Linux from accessing it. There may be other examples now or in the future.

Also, I think you can deduce the device color from [1] on Android.

So, in conclusion: https://storage.ghost.io/c/ee/88/ee889f88-37ef-43e5-9180-f9b...

[1] https://source.android.com/docs/security/features/keystore/a...

  • "When it is present, WebAuthn attestation tells the site the make and model of the authenticator, identified by its AAGUID, with a certificate chain from the vendor to back it up"

    Was going to say, GrapheneOS must not have the same AAGUID as whatever Google Play approved type they want to whitelist.

    • You can claim to be whatever AAGUID you like, but attestation is based on signature chains that your TPM verifies, for which there are very few, very flaky strategies (since that's the whole point of a TPM). GOS won't be passing attestation likely ever.

> When it is present, WebAuthn attestation tells the site the make and model of the authenticator, identified by its AAGUID, with a certificate chain from the vendor to back it up. It says nothing about your OS, your browser, your extensions, whether your phone is rooted or jailbroken, your firmware version, or even what colour it is.

Am I missing something? "Attestation tells websites what the authenticator is but it doesn't tell the website what the authenticator is".

The entire argument in this blogpost amounts to "nobody would ever turn on passkey attestation because it would require migration of people who already setup passkeys" which is a questionable argument- you could trivially imagine allowing unattested passkeys for existing users, but require it for new users. Most websites don't yet support passkeys to begin with, so this argument doesn't hold for the majority of websites.

The "biggest providers" bit at the end is odd too because the biggest providers are apple/google- who, as far as I know, do support attestation.

  • Apple does not support Passkey attestation on consumer devices. They've said between user privacy concerns and user experience concerns (syncing and backup are critical requirements to non-technical users) they will not support attestation on consumer passkeys. They worked through the standards process to push compromise standards that are not attested but help with some of the "compliance issues" that might have come to require consumer passkey attestation (these are the uvi and uvm extensions which are not attested and essentially are "I solemnly swear a biometric unlock was used to access this key" for basic 2FA/MFA CYA).

    So the "biggest providers" very much have some champions against attestation.

    • > syncing and backup are critical requirements to non-technical users

      hardware-bound webauthn tokens are also important since they are more secure

    • A caveat to this is that you can use an arrested passkey on a consumer Apple device via something like Microsoft Authenticator.

      2 replies →

The author is really missing the forest for the trees here

> When it is present, WebAuthn attestation tells the site the make and model of the authenticator, identified by its AAGUID, with a certificate chain from the vendor to back it up. It says nothing about your OS, your browser, your extensions, whether your phone is rooted or jailbroken, your firmware version, or even what colour it is.

So if I was Netflix or a bank or w/ever I'd only allow new registrations from "trusted" authenticators, which would incidentally only run on iOS and play-protected Android.

  • The next paragraph states that Yubikeys are a registered authenticator. Yubikeys are platform-agnostic.

    • A closed-firmware USB key is really no better option.

      Dear Yubico / Kensington / Google Titan, can I export my private key components to this other device, or even print them out on paper for storage?

      No - you're just an untrustworthy user granted the fleeting privilege of using BigCorp devices. Now stop asking such questions or you might have your attestation revoked.

      1 reply →

    • The issue is that operators can just curate a whitelist of authenticators they like. They could opt to not allow Yubikeys if they wanted.

    • Not only are Yubikeys agnostic, they cleanly slip from host to guest and present exactly as you expect, without a technical fight. Passkeys? I assume they could do this in a few years..

"Password manager you trust..."

Not so easy.

I've worked at places where we use a password manager to manage lots of passwords for random services that we subscribe to. The engineering manager always says "you can put your own passwords in for free" and I say "no thanks, they're going to get hacked" and then six months later... they get hacked.

I use the password manager on my iPhone because it seems pretty secure and it is so miserable to type passwords in on a phone but my other solution for passwords has used cryptographic generation with the database playing only a secondary role and it is fine for passwords but does nothing for passkeys.

  • The idea of keeping my passwords in my work-sponsored password manager just sounds absurd. Who thinks that's a good idea? What happens when you leave the job?

    • My workplace doesn't offer this, but I like the idea of how 1Password does it. If your workplace has a business account with 1Password, each of the business users gets a personal account for free. If you change jobs you can pay for your own account, but it isn't tied to the company account other than getting it for free with the corporate account.

      4 replies →

    • it's work-owned or work-managed accounts that get stored in a work-sponsored password manager.

      most will come with free personal accounts for employees, if they want and choose to set them up. those are separate, and have smooth offboarding for the no-longer-employee.

    • What I did was use usernames on those services that included a few chars to remind me which business I'd created it for. I was a software engineer bug changed jobs/contracts on average about once per year (that's a very, very rough average though).

    • eh the companies account for that. for example 1password basically gives you a "free" extra personal account if you enroll into a work account. and when you leave, you just keep the personal account.

      "free" because im not sure if your employer pays for it or if its like a free benefit to a bussiness licence

      1 reply →

  • What you describe is a different attack surface than the much more problematic on that password managers solve well: password re-use across websites where the blast radius is super high.

    If I had to trade off the risk of a password manager being hacked versus password re-use, I'm going to strongly recommend to people generally to use a password manager. Yeah there's a lots of "if this, if that"--but that's almost a universally better risk for most people.

  • I think this part is where TOTP's 2FA/MFA model is "safer": you do not need to trust the TOTP manager. Even if the app sends all your TOTP secret keys to the server, they cannot hack your account because your password is stored elsewhere, and TOTP code alone is useless.

  • >I've worked at places where we use a password manager to manage lots of passwords for random services that we subscribe to. The engineering manager always says "you can put your own passwords in for free" and I say "no thanks, they're going to get hacked" and then six months later... they get hacked.

    There is heaps of context missing from this. Did the password manager itself get hacked, or did an employee leak a password for a single site that didn't use 2FA ?? The former strongly solidifies your point, the latter undermines it, and to be clear I don't think it's a good idea to use an employer sponsored password vault either.

  • which password manager were you using that it got hacked?

    • Not GP, but I've seen this happen a few times with $work managed password managers. From memory and in no particular order, the reasons for the breach were:

      - User account with access to the SaaS password manager was compromised.

      - User account with access to the SaaS password manager was compromised.

      - User account with access to the SaaS password manager was compromised.

      - Password safe file (keepass) was compromised/leaked and its (medium-strength) master password was presumably brute-forced.

      EDIT forgot one:

      - Password manager was used by a user-facing web backend, which unlocked it with an unscoped read-everything master password. Web backend was hacked, predictable consequences ensued.

      4 replies →

  • Aren't password managers like Bitwarden essentially zero trust? Even if they hacked the entire database, what would they do with that?

This blog post is the perfect example of someone rationalizing away the bigger picture.

It's true that passkeys do not require hardware and OS attestation today, so all of the specific examples you cite are true. But the point remains that that passkeys can be EASILY extended to require hardware and OS attestation, and this will happen.

Banks have already done this. Before using an app was optional. Play protect was optional. It's like my uncle ted used to say, techonolgy is not optional.

  • When my state introduced seatbelt laws they assured the public that they would only be a secondary offense, never the primary basis for getting pulled over and issued a ticket.

    Now they run "Officers are watching! Click it or ticket!" as an advertising campaign.

    And I'm not arguing that seatbelt laws are bad per se, just that any time there is a pathway for more control, it will eventually be taken, even if assurances are made that it will not happen.

    • The arguments of they never "usually" do this, or "the guidance says" are meaningless. Whatever can be used for control, will be.

    • When you’re dealing with people so persistently stupid that they haven’t figured out the value of seatbelts, while still generally insisting that the costs of their medical care are socialized, my appreciation for the necessity of social control is enhanced rather than dampened.

      2 replies →

    • The people are in control at all time, so I don't think this slippery slope argument is correct here (it's a logical fallacy for a reason).

      You just have to remind the politicians from time to time - the French are a great example in that.

  • I think it's more that attestation can require a specific "approved" authenticator, and that authenticator is what would enforce all of the required OS/Software/Hardware requirements, even if it didn't get included in the attestation standard.

  • And passwords could easily be extended to requiring photo ID...

    • No, they can't. You could try ro replace passwords on your service with some stupid id verification scheme, but you have not extended passwords.

    • How? It wouldn't be easy at all it would be totally unconventional and break all sorts of expected workflows for passwords if you had to take a photo every time. For example at my work we have a ton of computers and none of them have webcams.

      Passwords are client-neutral. Passkeys aren't: you can force a certain client, and now those clients can force an OS through attestation.

      It happens now with 2fa today. I have gone through college for 4 years having to use this shitty duo mobile app and we have to take out our smartphones 20 times a day to do things and re-login after every 20 minutes.

      2 replies →

  • That's a good thing?

    Most consumer websites won't use attestation.

    Places where additional security is required (bank, employer, etc) can.

    • Most consumer websites won't demand you share a scan of your face to third parties, until they do. Same exact thing will happen with passkeys, guaranteed.

      5 replies →

    • Access is a good thing too. I don’t want hardware attestation, i want to be able to access my bank from anywhere. Banks continually push their liability for security onto customers.

      1 reply →

    • People who are more tech libertarian don't like when critical aspects of their life requires a smart phone from either Apple or Google. The ability to avoid these companies is becoming increasingly difficult, and attestation is one piece of that puzzle.

      I don't think that means throwing out passkeys entirely, but that's why you're seeing a lot of "slippery slope" stuff in here

      3 replies →

The trap is already here for me. When I make a passkey for my corporate microsoft account, I'm only allowed to use Microsoft Authenticator on an approved device (it's not a work provided phone. Microsoft Authenticator doesn't work with rooted phones). This is not some mythical change that will happen tomorrow. It's already here for me and has made me dedicate a device, just for using passkeys for work.

  • Two reasons why orgs restrict the AAGUIDs down to MS Authenticator:

    1. Verification of the legitimacy of the passkey. 2. Passkeys are a support nightmare if you don't restrict what can be used, and the only way to restrict is by using attestation.

    If you don't restrict down, there is nothing stopping someone from setting up a passkey in Edge or Chrome or Windows Hello (not Windows Hello for business), and depending on what device or profile they are signed into, when they go onto another device, no passkey.

    If someone is a single device user and only uses their corp device to access, and the corp only cares about phishing resistant MFA from an Entra perspective, as part of the auth strength configuration, Windows Hello for Business is enabled by default.

So: currently, the cauldron is cold, therefore ignore the fire below it and hop right in.

  • The cauldron is already warm. I encourage people to read these issue trackers.

    https://github.com/keepassxreboot/keepassxc/issues/10407#iss...

    https://github.com/keepassxreboot/keepassxc/issues/10406

    "The unfortunate piece is that your product choices can have both positive and negative impacts on the ecosystem as a whole. I've already heard rumblings that KeepassXC is likely to be featured in a few industry presentations that highlight security challenges with passkey providers, the need for functional and security certification, and the lack of identifying passkey provider attestation (which would allow RPs to block you, and something that I have previously rallied against but rethinking as of late because of these situations)."

    "This implementation is not spec compliant and has the potential to be blocked by relying parties."

    Proponents keep trying to hand wave away the attestation lock-in problem as some vague faraway threat that we may never encounter. It isn't. It's the actual plan.

    • These are very damning. Pretty straightforward about removing all software freedoms in favour of some sense of security. It really is already happening:

      > I have a sneaky suspicion that some of our failures with various RP's is because they are only accepting certain authenticator GUIDs.

      This comment from the KeepassXC maintainer makes me feel like the whole spec is already completely flawed if such a situation is even possible.

> When it is present, WebAuthn attestation tells the site the make and model of the authenticator, identified by its AAGUID, with a certificate chain from the vendor to back it up. It says nothing about your OS, your browser, your extensions, whether your phone is rooted or jailbroken, your firmware version, or even what colour it is.

Practical experience from Austria where attestation is used to limit which hardware tokens can be used for the EU digital identity: it sucks. You're limited to a very limited number of keys: https://www.id-austria.gv.at/de/hilfe/hilfe-zu-ida/authentif...

Now: will more people do this? I don't know. But I fault the standard for enabling it in the first place.

  • > it sucks

    Exactly. From the page about the requirements for the app under 1) in your link:

    > System requirements

    > Android 12 or iOS 16

    So one of four methods is, by default, already completely dependent on having an account with $american_megacorp.

    4) is another app where it doesn’t outright say, but I’m guessing the requirements are also a mainstream OS, mobile at that as well since they seem to use biometrics.

    That leaves 2) dedicated hardware and 3) dedicated hardware. Great. (see the “my house burned down” article/thought experiment as to why I’m against that.)

I accidentally set up a passkey for one application, a certain accounting software. Now when I login, I'm required to give both the passkey from my password manager and usually my password, too. It's a usability mess and basically makes it impossible for me to share my login with e.g. my wife when she might need to login to that account. That's the practical trap.

The real trap is when Google decides in a few years that third party passkey managers will no longer be granted an ability to use the Chrome extension APIs, and Google Sync and other pay-to-play vendors are the only supported ways to handle passkeys. uBlock was just the beginning.

I'm sticking with my passwords for now. Some providers ::cough:: Meta ::cough:: have become openly hostile to allowing anyone to login to their services, but most haven't made it too cumbersome yet.

I actually spoke up about this at a local chamber meeting today during my 30 second elevator pitch. I decided to give a brief cybersecurity awareness month pitch about having backups for your 2FA and to be wary of passkeys because you will be locked out on device changes.

I think they are a trap. A usability nightmare. So, I acquiesce to a passkey to a site while on my iPhone and now I cannot log onto it from my work desktop in Firefox. An older person sets it up on his or her Google account, gets a new phone (iPhone to Android) or Android to iPhone doesn't matter and loses access. We know that Google won't help a regular consumer with anything.

Syncing may be a thing in theory but the friction is huge.

I still don't use passkeys because I don't know what advantage it has over my existing method of generating random passwords in my passport manager and using that. My password manager generally autofills it anyway.

I know where my password manager syncs, it's on all my devices. Passkey prompts always seem confusing, I don't know if it's going to save to my browser, or my OS, or if those are gonna sync on what devices. It's just more confusing.

What would I gain from using a passkey?

  • >What would I gain from using a passkey?

    The number one gain I see with passkeys is that they are phishing resistant. The biggest issue I've had with TOTP keys is they aren't phishing resistant.

    Forcing people to use passkeys gives the authentication layer a stronger means to ensure that people are logging into the correct domain. A password manager accomplishes this, but it's very difficult to enforce. (I've heard a number of variants of "John Smith sent me an important document and when I went to open it, the password manager didn't work so I just copied password")

  • I’ve seen tech-savvy people getting phished into entering their password on a fraudulent site, despite the password manager blaring alarms that the login looked fishy.

    This cannot happen with passkeys at all because crypto magic.

    • I assume a phishing site wouldn't even attempt to use the passkey because it can't. So wouldn't it just ask for a password, and at that point, if you're gonna fall for it, you'd go and grab the actual text password anyway?

      My password manager matches off of domains too, so it wouldn't suggest to autofill on a phishing site.

      4 replies →

    • > This cannot happen with passkeys at all because crypto magic.

      That's way too optimistic.

      The core reason people enter the password in different domains is because most services suck at keeping a canonical login page. That forces users to register multiple URLs for a single credential. And from times to times, they hit a page not within their registered urls, will login and just add the new url to the pool.

      Will these services magically become super competent because of passkey ? I'll respectfully doubt it.

      They might not screw this specific aspect, but they'll screw enough other things that users will need to keep injecting password somewhere from times to times.

  • What's the difference between using a really good password vs. public key authentication in SSH?

    • It's bad analogy. webauthn is quite far from just a protocol to verify keys.

  • > What would I gain from using a passkey?

    The correct question is What did others gain?

    - Phishing free press fingerprint or faceID or Windows Hello for login into many important sites

    - many people don't have time to type password, then otp. If most of the world did that then this would not be needed.

    - And finally, YOU are not OBLIGED to use it. Let the rest of population use it.

    - It is like SOME pay with phone/NFC-Watch etc. MANY still use card or cash...

  • You’d gain forced lock-in to client operating systems and hardware that someone else picks for you.

Saying "attestation can't hurt you, your password manager returns `none` today so it's not a concern" is avoiding the entire point of the original article which was that that can change at any time! I'm already seeing in a corporate context, IT departments forcing hardware attestation as required everywhere. Justifiable, but also clear evidence that it's no longer in your control as the person authenticating. That's the point, passkeys are marginally more secure for you, while handing huge amounts of control to centralized platforms.

What I'd like to understand is why the majority of sites that allegedly supoprt passkeys do not let me store them on Yubikey hardware but instead are pushing into "cloud" passkeys. That's what is triggering my spidey sense about the whole scheme. If they are so great all around and vendor neutral why is everyone pushing me to store my keys in some "cloud" password manager? If I'm going to the trouble of setting up passkeys I want to be in control of them across all my accounts. That means my own hardware dongle. Not some cloud vendor's pinky swear that they'll take care of them and let me use them on my terms.

  • Websites can't choose for cloud passkeys. That's your OS or your browser.

    They can request you store the passkey in something non-exportable, but many software passkey providers simply lie about being super duper secure.

    • My OS (Arch), my browser (Firefox) and my hardware (Yubikey) all work fine with some sites. For example my Google account credentials are on my Yubikey passkey. But half of the sites that claim to support passkeys won't offer me the option to save the passkey on my hardware. Paypal is one such example. Facebook is another. I don't understand why. They seemingly only want to cooperate with cloud based passkey storage. I don't know what mechanics govern this.

      2 replies →

Passkeys are a trap and are awful. And before someone says they are "more secure", meaningfully more secure than a unique email and unique incredibly long password for each account? Because multiple password managers can set that up now in a few seconds with 1/100 the friction of a passkey.

I hope anyone who is promoting these things has to help and elderly relative do something in an account they are having trouble accessing where they had to use a passkey to set it up. Or try giving your spouse access to a health account they need to access in a hurry. Or make a physical backup that a family member can use in case something happens to you and or your computer.

Look, at best, Passkeys shift your logins from your head to OS-supplied keychain management. Whether they do attestation today or not, they big, industry-wide effort to move away from "what you know" (i.e. username/password) + "what you have" (2FA) towards "platform-authenticates-you-to-website automatically" has both security benefits and lock-in risks.

Maybe it was too strong to say the were a "trap", but it is also too strong to say there is no worries here.

  • TFA's author has also explicitly precluded the "platform-authenticates-you-to-website automatically" workflow, in a separate blog post [0]:

    > This one can be tricky because I've seen many sites using passkeys to replace passwords, but that's not something we've done on Report URI, passkeys are used as a 2FA mechanism.

    [0]: https://scotthelme.co.uk/xss-is-deadly-for-passkeys-the-hidd...

    • Well, they can (and likely will be) used in both modes. Either these things are just a different way of generating a password for a password manager (itself a big target of attacks), or they are a way "to move beyond password with TPM-level security". If it's the former, the security benefits are limited. If it's the latter, the "it's a trap" logic applies at least in part.

      1 reply →

  • > OS-supplied keychain management

    That is your choice as the user. You can use the default credential manager that is offered out of box, or you can use your own.

    https://whatarepasskeys.info

    • No, you can't just use whatever passkey manager that you want.

      I use Safari, Chrome, MacOS, a Google Pixel phone, and 1Password. I have passkeys in 1Password, but it's a crap shoot if I'm able to login on a device.

      Chrome wants me to use Google Password Manager. There's no option in chrome://settings to set 1Password as my passkey manager. If I try to use a passkey to login to GitHub Chrome pops up a modal that lets me choose between iCloud Keychain, Use a phone or tablet, or USB security key. There's no option to use a different credential manager.

      Safari wants to use my iCloud Keychain. There's no option in MacOS Settings to set 1Password as my passkey manager. If I try to login to GitHub I get an option to Scan QR Code or Use Security key. There's no option to use a different credential manager.

      My Pixel wants to use Google Password Manager. There *is* an option in Pixel Settings to set 1Password as my passkey manager, but it doesn't work in Chrome. All I can do it select "use another device" and it shows a QR code. There's no option to use a different credential manager.

      Essentially every OS and browser thinks I want to use a phone for my passkey, and this is exactly the situation that I and everyone else is bothered by. I do not want to tie my login credentials to a phone that can be lost/stolen/bricked and will be replaced in several years.

      So no, you can not use your own credential manager.

      3 replies →

    • It's notable that several of the claims on that page conflict with the other info in both the OP article and the follow-on.

      As for choice as the user, it's a choice "for now"... and only for users who understand all of these details (which seems unlikely).

      Personally, my observation is that if one tries to properly configure 2FA with any major website lately (no, I don't mean AWS console), the level of "your choice" and properly implemented security has actually gotten worse...

      1 reply →

    • Much like you could use any AOSP fork to run banking applications... until you couldn't. But hey, at least there's an explainer website[0] that completely glosses over this detail.

      [0]: One great bit of environmental storytelling is the "Made with <3 by the passkey community" in the footer. "Passkey community" of course means timcappalli with minor contributions from two others. You might remember him from https://github.com/keepassxreboot/keepassxc/issues/10407#iss....

Passkeys are the wet dream of the IP industry. They don't want you account secured from hackers, they want you to be unable to pass your password along to friends and family, so they use it to watch your netflix or play your licensed video games.

I use GeforceNow, and everytime I start a new session to play Battlefield 6, EA makes me enter my password and sends me an OTP via email before I can play the game (due to GeforceNow, they don't save it for future sessions). It is horrible UX, and I would want turn that off. You know what, the whole world can use my account to play BF6, I don't care. THEY care so I don't share my GeforceNow+BF6 credentials with other people. An attested passkey, bound to a fixed device cannot be passed on. Add 24h cooldown on passkey changes, and you effectively stop account sharing.

  • Might be hard for them to get away with only allowing 1 passkey per account since someone may have a phone + laptop or something, but even if the limit is 3, now they can limit usage to 3 people.

  • They could have just implemented their own worse, non-standardized solution to be anti-user. Good actors can use cool tech for good purposes, bad actors can use cool tech for bad purposes.

I got quite recently turned off from passkeys. I used it on my gitlab. Stored in my password manager and was unable to log in via my phone.

Turns out, my Android version is too old. I can only use pass keys stored in google. It doesn't support using them from another provider. Need a newer version.

The argument that TOTP could be entered in the wrong domain... Nope, my password manager wouldn't propose my TOTP on the wrong domain. Hence, that is solvable. But if I wanted, I could still do it. Sure, I can be phished. That's my risk. But I can also log into a domain who has moved, or far more likely, use the password manager to fill out the 3rd party android app for that service.

Yea, that article did not convince me a single bit, the original article convinced me a whole lot.

I recently had the displeasure of using Passkeys:

- trying to sign in to Okta on my personal Linux desktop computer. It has bluetooth and I had my phone right next to me, also with bluetooth turned on. But Firefox simply refuses to even show the option for "connect to your phone" or to give a QR code... it just said "tap your security key or biometric device". I had neither; my passkey is on my phone. Then it timed out and I gave up trying to log in.

- trying to sign in on my work Macbook using Google Chrome (enterprise managed one). For some reason, upon scanning the QR code, my phone was stuck on "Connecting..." and timed out. I had bluetooth turned on on both devices, they were five centimeters apart, both were connected to internet with a great gigabit connection. It turns out, I had to quit and restart Chrome and it magically started working.

- trying to sign in on my work desktop using a physical Yubikey remotely using VNC. It's not possible by design. I had to get my coworker to press my Yubikey in the office.

- trying to get Muse and OpenAI Dot to sign in using a passkey. It's not possible by design.

Generally, the user experience is really horrible with passkeys. It is also ironic that it trusts my phone (used for shitposting; easily lost or stolen) instantly, but simply refuses to trust my personal Linux desktop computer, which is fully encrypted, securely stored in my house, and contains all my life's work and everything that is dear to me.

Let us consider the average user. The one who manages to lose their iPhone and has no idea what their iCloud account login is because they were aware of having to log into it once when they created the account at phone purchase 3 years previously.

That's where the trap is.

  • That person is fucked when they lose their phone anyway, because they're also the sort of person who has never backed up all their photos/contacts/iCloud files anywhere that doesn't require iCloud auth to get at. At some point we have to either properly educate people on the fact that they need to have a recovery path, or we have to accept that they're going to need to rebuild their entire digital life every 2-3 years.

    This is your cue to go get your parents to add you as recovery contacts for their Apple account now, rather than finding out that exists when they lose their phone.

    • This is presumptuous. Many people back up their devices and have no idea how they did or whether or not it succeeded. Seen it many times(fortunately).

      > That person is fucked when they lose their phone anyway

      I am hoping nowadays most people lock their devices. I rarely see unlocked in my adventures anymore.

    • Compared to some of the harms that will come from platforms abusing attestation, rebuilding your digital life every 2-3 years is no big deal.

  • As long as they didn't turn on the advanced protection features on their account they just go to the Apple Store who can help them get back in

  • Impossible. Because iPhones randomly force you to enter your iCloud password, often at the worst possible time. Such a user would have already been prevented from signing in to their own iMessage on a random Tuesday afternoon.

    One of the most frustrating issues with Apple's UX.

    • I've never experienced that. The only time I've entered my password was when I set up the iPhone and when the phone got into a weird state after a software update.

      1 reply →

    • It depends. It sounds like you're all in on the ecosystem. I only have the apple account because I have an iphone. I didn't get one of those double check reauthentications since many years ago, up until last month when I got apple tv. I know because I had to reset my password and it was older than my use of a password manager.

I think the passkey standard included attestation for good reasons, but it is obviously also possibly a trap in the sense that I'm sure there were some people on the standards committee(s) envisioning a glorious world where they can flip this on for everyone and instantly all the bad stuff stops.

I have to admit I don't worry too much about the entire internet flicking attestation=true anytime though, because the resulting support nightmare would be ferociously expensive. I wouldn't be surprised that, on its own, it would be more expensive than the cases that the companies flipping the switch are trying to avoid. Which means it isn't going to happen.

The simple truth is metaphorical-Grandma can't handle the degree of responsibility put on the user that strict hardware attestation implies. Netflix et al are more likely to want metaphorical-Grandma's money more than an incremental improvement in their ability to be sure it's an attested login, and won't want metaphorical-Grandma to call Netflix every other week trying to figure out how to log in again. There is no way around the fact that strict attestation implies more user responsibility to make sure they don't lose their token, and at scale, they absolutely will. Work environments can get away with this because work environments have a scalable mechanism to re-verify identity to the extent the business cares about it personally, and reissue tokens. At scale the big companies do not have this for individuals. You can't use hardware attestation without this infrastructure for reverification, and any infrastructure for reverification a large corporation tries to create will have exploitable holes in it.

  • > there were some people on the standards committee(s) envisioning a glorious world where they can flip this on for everyone and instantly all the bad stuff stops.

    Why the past tense? Here's a list of FIDO Alliance board members: https://en.wikipedia.org/wiki/FIDO_Alliance#FIDO_members. I would love a spreadsheet with their positions on remote attestation - let's start with the banks.

I don't use passkeys but the thing that raised a red flag for me while reading the article that the OP is responding to is the "non-copyable" property. It's not possible to prohibit delegation[0], so the idea that a key can only be used on one specific device necessarily involves a form of DRM/wishful thinking.

[0] http://www.erights.org/elib/capability/delegations.html

  • The entire point of passkeys is to force DRM onto all corners of the web. It lets sites require attestation of the software running on the client device. Once they use that to eliminate hardware and operating system competition, they’ll ramp up surveillance and censorship even higher than current windows levels.

    Passkeys are the second prong of the age verification push.

    If you want more evidence, read up on Project 2025’s plans for forcing the internet to adhere to American Christian Nationalist values, then try to figure out how that could work in the absence of passkeys.

This author is astoundingly trusting.

> If a consumer website decided tomorrow that it would only accept attested passkeys, it would lock out almost all of its own users, instantly. What website is going to do that?

Any of them? All of them?

"Starting next year, only Google Authenticator and Google Chome passkeys will be valid for gmail logins. Help us keep your account safe by limiting access so ONLY YOU can read your emails"

"Good news! Your Instagram account is getting safer from hackers and spammers. As of next month, you'll use your Meta Metaverse token for all logins to Instagram, Facebook, Theads and WhatsApp"

Google already forced OAuth2 on Thunderbird [0] and the rest of the email-client universe.

[0] https://support.mozilla.org/en-US/kb/automatic-conversion-go...

  • Google forced OAuth2 because Simple authentication is absolutely terrible.

    • There's absolutely nothing insecure or wrong with app passwords for a local client application.

      The whole point of OAuth2 is to allow logging in to some untrusted 3rd party site via an authentication provider without having to key your password into the 3rd party site.

      a) Local client software like Thunderbird is/must be trusted, it's not a random 3rd party website.

      b) App passwords remove the risk of Thunderbird stealing your password, even if for some reason you didn't like typing a password into Thunderbird.

      c) Google is both the Authentication Provider and the Resource Server in this example, so it adds zero security.

      3 replies →

  • Google would not do something that would lock out half of the mobile device market. iOS doesn't do attestation.

    Also, is there a reason Thunderbird or other clients couldn't use OAuth? I'm fairly certain I can login to GMail on Mail.app in macOS and other clients, so they're not using that to lock people into the official app or their browser

    • Are you sure iOS doesn't do attestation? Google recently turned on requiring an iOS or Google-attested Android device with a camera for some reCAPTCHA challenges(i.e. take a photo of this QR code). They waited for Apple to support it before doing so.

      1 reply →

    • Google today might not do that, but Google tomorrow, when some upper manager's multi-million dollar bonus gets tied by a performance metric on how many people are using passkeys for gmail would in a heartbeat.

If they are not a trap, then the standard should be amended to allow third party implementations to forge attestations.

Otherwise, it is a trap. The story of the last 25 years of the internet is user hostile ratcheting away of the open web. Passkeys are obviously another step in the process.

Biometrics is my main concern around this, and in that the government can compel you to provide them for device unlock, unlike a pin or password.

Until we change our laws in the US on this front, I will continue to use passwords and hardware keys separate from my phone box.

  • There is nothing about passkeys that requires biometrics. Synced passkeys on android will work with your screen unlock code if you do not have biometrics enabled. Same with passkeys stored in a password manager. Same with hardware passkeys that do not support biometrics.

    • every time I've been prompted for passkey setup, it says things like "this is easier, just give your fingerprint"

      no thanks, passwords are not a burden to me

      2 replies →

I don't find this post convincing.

> If a consumer website decided tomorrow that it would only accept attested passkeys, it would lock out almost all of its own users, instantly. What website is going to do that? Besides, the guidance for consumer sites has been to not even request attestation for years now.

This isn't a rebuttal to the claim that they're a hidden dial. It's just saying that it's too early to crank the dial.

>Attestation Isn't What You Think It Is

>The post describes attestation as proving "that an approved passkey manager, operating system, and firmware are in use" which is simply not true.

>When it is present, WebAuthn attestation tells the site the make and model of the authenticator, identified by its AAGUID, with a certificate chain from the vendor to back it up. It says nothing about your OS, your browser, your extensions, whether your phone is rooted or jailbroken, your firmware version, or even what colour it is.

This point is bypassed by websites only supporting specific authenticators and then those specific authenticators only supporting specific devices/OSs/browsers/etc via other attestation frameworks.

  • Then guess what - people stop using those websites.

    The big players who want to gatekeep you in their ecosystem do not want attestation - they want you to give them your passkeys for them to store under the guise of "hey, we'll sync it for you!".

    A yubikey is easy to use. Buy a second as back-up. If you're clumsy and lose things all the time then set up recovery codes. Add a recovery contact. Use insecure 2fa like TOTP or really insecure 2fa like email/sms/etc. codes.

    There's plenty of options for authentication in the modern world and passkeys are at the top. If users are 'too stupid' to use them then that's a user problem.

    I'd rather spend the 5 minutes reading how these things work and then not hand the keys over to big tech.

    • > Then guess what - people stop using those websites.

      Wishful thinking. Sadly, the vast majority of people will be perfectly OK with a website telling them they have to use a recent iPhone or Play-enabled Android phone to do something. This is already the case for banking apps and a huge number of other phone-app-only services.

    • Only a few people stop using those websites, because most people will use the Apple or Google authenticators and be done with it. And if those websites are essential services, those few people who don't conform will be left out in significant ways.

    • > Then guess what - people stop using those websites.

      You can’t just stop using those websites if your university uses them for student/employee accounts.

    • How can I even distinguish such a site? I use devices that are probably approved, but I don't want to be forced to.

    • Yubikey is expensive. It costs like $50 which is insane. And, for nfc we need to buy different version.

> If a consumer website decided tomorrow that it would only accept attested passkeys, it would lock out almost all of its own users, instantly.

The argument of the site hinges on the fact that attestation cannot be activated for an already generated passkey. But that is a BS argument. Right now, the industry tries to get the user used to the workflow of passkeys, the tools, how to use them etc.

Once a critical mass of users uses passkey, you CAN switch on attestation overnight: You simply prompt the user that he needs to create a new passkey because the old one is no longer valid. The user knows the procedure and will simply create that new passkey to be able to login, this time with attestation enabled. Hell, we even have those "You were logged out of your account for security reasons" flow everywhere (looking at you, Google). Make it a dark pattern and require that regenerating when the user needs to login the most, and voila you bait-and-switched your critical userbase.

The fact that passkeys are not expected to be backed up and freely be exported between password managers and wallets is not helping here (you are by the standard not supposed to be able to do that, but user-friendly wallet today simply ignore that part of the standard).

I'm a happy user of 1Password myself, but warning that they only allow export of passkeys through a specific protocol, and it has to be done on the mobile app. [0]

[0]: https://support.1password.com/export/?ios

  • The problem is this:

    > 1Password for iOS exports ... directly to other supported apps, including your passkeys.

    They pick the list of other supported apps. There is no ability to export to a standard encrypted file, nor is there a way to develop an open source app that can receive an export over the objections of 1Password Inc.

    • Exactly. So much for TFA's "or whatever other software of your choosing" claim.

      Passkeys are a trap, trying to lock users in to the service providers.

      I did say I like and use 1Password, but I do remember that they switched from a one-time payment model to a subscription model, and have now stopped supporting the old software and only support their subscription software. If it wasn't for my non-tech-savvy, aging family I support their usage of 1Password for, I would still be on Keepass[XC] for my own private usage.

I have to say the messaging around passkeys is bad. So many providers show modals with big friendly lock logos superimposed on a smartphone to announce the change without offering any explanation about why the change is happening, why the change is happening now, or how the technology works.

I don't know when it started, I don't know who is to blame, but we've definitely arrived at a conceptualization of "the user" that is passive, uncurious, and incapable of being talked to like an adult.

Let’s assume passkeys are the greatest thing since sliced bread.

Passkeys face the same problem as the USB-C rollout. Lots of different incompatible implementations and standards rolled under one name that are almost impossible to distinguish between. Very little education on how to use it and be prepared for it.

The difference is that the consequences of getting passkeys wrong for the user is significantly greater than getting the wrong cable, and while the latter can easily be fixed, the former may be irreversible.

  • I hope passkeys are the same as the USB-C rollout. The internet whines and complains for a few years about their theoretical device from 1999 that won't work anymore and then everything is just plain better for years to come.

    • Hah, I had the exact same reaction.

      So many words spent on HN articles complaining about USB-C or praising Lightning... fast forward a few years to now and I legitimately just pack one cable in my bag and charge any device I happen to bring with me.

      1 reply →

Passkeys are such a flaming disaster from a UX standpoint. I can't recommend anyone use them.

  • Even ignoring the lock-in problems, they seem so inconsistent. Also why are there like 8 prompts making sure I want to use the passkey?

Ok, but passkeys have prevented me from being able to do something remotely before.

Like, the far away computer tries to check if my phone is nearby, and it's not, therefore I must not be authorizing the login.

If anyone knows how to fix this I would be happy to learn.

I feel like every time I have added a passkey to an account I've been forced into it, and I didn't fully understand the implications.

I'm not an expert, but it's frustrating to read these threads about passkeys. The common objection I see here is "But if I lose my device I'm locked out!"

A lost passkey should be treated the same as a lost password.

Sites that implement passkeys need to have an account recovery mechanism. Granted, not every site does this correctly. Don't use passkeys on sites that don't have a recovery mechanism!

Secondly, the site you're authenticating to must allow you to have multiple passkeys. You either have a cloud-synced password manager so that all of your devices get the same passkey, or you have a passkey per device that you use to access the site. Again, not every site allows multiple passkeys. Don't use passkeys on sites that don't allow you to have multiple passkeys.

For a site implements both of these properties correctly, if you lose your device, you just connect to the site with your new device, perform whatever account recovery procedure (TOTP, email verification, phone verification, ...), create a new passkey, and, ideally, disable the passkey from your lost device.

  • The problem with "sites must allow you to have multiple passkeys" bullshit is that sites aggressively push you towards making that first passkey, but then hide the process for adding additional ones 6 layers deep in settings such that a typical user will never see it.

    I literaly just had to unfuck my grandfathers webmail because of this garbage. "oh, I can only log into my email on my ipad now" and I immediately knew the shadowy cabal of evil over at the FIDO Alliance were to blame.

    It is up to us technical users to make sure the other 90% of society don't fall for this shit. Tell them it's the mark of the beast, tell them that it's fascists seizing control of your identity, tell them whatever will make them run for the damn hills anytime they see "alternative ways to sign in".

    • TOTP was kinda like this too. The standard was fine, but actual implementations like Google Authenticator disallowed copying keys to another device, saying this is WAI and you're supposed to set up a separate TOTP per device. Absolutely user-hostile and took several years to fix.

      Passkeys did better day 1 because they synced, probably just cause password managers are better now than back in the TOTP days. But for some reason the standard has a way for them to force you to use like a WEF-approved KYC passkey store.

      3 replies →

Anything that's tied to hardware is one accident away from locking you out forever unless you set of "2 of 3" or some other "let's make life even worse when it comes to authentication" solution.

Passkeys are a trap in that they're a fairly confusing implementation that ends up tying you to a specific device or device ecosystem.

Passkeys can be tied to a root of trust, like those owned by google, microsoft, apple.

Currently they aren't tied to that root of trust.

Most of those organizations have shown that they don't want people owning their own devices or being able to run their own software, and they use developer attestations, IE a revocable programming license to accomplish that.

Tools like android's safetynet makes it so that you can't run banking apps on a phone running your own software. One that bypasses developer attestations.

Passkeys are currently an open standard, but attestation is built in such a way as that it could be only usable on n approved operating system with programmer licenses.

Big websites like amazon, or websites you need to exist in society, could gradually start requiring the usage of attested passkeys.

---

There is a clear path from passkeys to the death of general purpose computing for 99% of people. Don't be a useful idiot, don't assume these corporations have your best interest in heart. See this for what it is, a path towards killing people's ability to run unlicensed software on their own devices.

I have seen an exception to this with Microsoft Entra. I was not able to store and use the passkey in my password manager of choice, I had to save it in Microsoft Authenticator. I haven't tried again lately since that was for a previous job, and I didn't look into the underlying reason it failed, whether it was attestation of some sort or something else about how they set it up.

I'm generally pro-passkeys, but also acknowledge they are a hot mess for the average non-techy consumer. And there does seem to be room for the screws to tighten, and we definitely need to resist that.

  • Microsoft also didn't let me use a normal TOTP authenticator and it wouldn't let me sign in with just my password. Every step along the way of a corporate MS account is bullshit, passkeys are just a victim of enterprise policies.

  • Microsoft Entra is a workforce product. An employer always decides how you authenticate to your work account. It's not your account.

I don't want passkeys. I want to stop being bothered with setting up passkeys, especially if I already have 2FA setup, and definitely if I already have a hardware fido key on the account.

> When it is present, WebAuthn attestation tells the site the make and model of the authenticator, identified by its AAGUID, with a certificate chain from the vendor to back it up.

Me: The person who posted this post critical of The King on Facebook was totally not me!

Police: Here's "a WebAuthn attestation" that told Facebook "the make and model of the authenticator, identified by its AAGUID, with a certificate chain from the vendor to back it up" and it fits Evidence A.

No thanks.

  • As if the police in a corrupt state are going to check the public fingerprint of your passkeys. Your account identifier is proof enough.

    The make and model of your authenticator is shared with about 2 million other Yubikeys, if anything they'll compare your public key, not the attestation process.

> If you want to be able to move your credentials around, pick a provider that supports that

The fact that passkeys are not required to be portable is the entire trap

Passkeys are FINE. The implementations suck.

The entire thing where some websites let you set them up, some force them on you, and some just surprise you.... sucks.

The fact that Passkeys don't have an easy migration path between secret storage tools is also a problem.

But if you know what you're doing they are not only perfectly safe, but REALLY safe. Much safer than any other option we have. And seriously way more convenient as well.

  • > And seriously way more convenient as well.

    A point I don't see mentionned: switching accounts with passkeys is a PITA. Yes it's an implementation issue, there is no technical reason for sites to auto-log you with a passkey when you have one.

    But as you point out it will be more convenient for a majority of people, so right now switching between multiple accounts when any of them has a passkey is a hell of itself.

    Some password managers might handle it well now, I'd be curious to know as I'm won't be doing these kind of experiments again until there is a reasonable chance to go well.

Not sure if this mentioned, but I setup a new Gmail account and it wouldn't let me add my yubikey for MFA. I could only add a passkey to my yubikey for MFA.

Last time I tried using Firefox on Linux with Keepass's passkey implementation it worked on the test page and a couple other sites but Facebook refused to add it, so I definitely believe that e.g. banks and various other important sites won't balk at restricting passkeys to Android, iOS/MacOS, and Windows. I am curious what other people's practical experience is with these kinds of sites.

I've set up a few passkeys to see what it's like and the experience is wildly different between sites.

State Farm is the only place I've actually liked it. I don't have to type ANYTHING in.

Open browser, open password manager, click the "sign in with existing passkey", browser and password manager talk, prompt me to confirm the passkey choice, and I'm in.

Most sites I've messed with insist on you entering a username first.

  • > Most sites I've messed with insist on you entering a username first.

    A lot of them do that to detect if they need to trigger an SSO flow. It's awfully annoying. Things get extra fun when a website migrates from email+password to SSO and suddenly you have two accounts that both exist in their system, one of which doesn't work if you hit enter before the SSO javascript redirect happens.

I find the following has the right combination of mental model and security for me:

1. A password manager that generates my passwords stored on an external USB key (which is itself encrypted). I use KeepPassXC.

2. More than one Yubikey doing U2F.

I know how to backup #1 and I have more than one of #2 to handle losing a Yubikey. #2 gives me phishing protection.

For me, randomly generated passwords(via proton pass) combined with remembering to check the URL stops phishing and is easier to share.

  • Passkeys are a solution for a problem that the users didn't have (website security).

    And the solution was: make it the user's problem.

    Yay.

I was expecting the author to at least address the thinly veiled threat to blacklist KeePassXC at [0] (via the very same mechanism they claim is harmless), but of course it's not even mentioned.

I'm sorry, but if your system allows someone to make a credible threat like this, you should make sure to redesign your protocol so that kind of abuse is not possible BEFORE advocating for it. I'm so incredibly sick of people repeating history, only to disappear once we're all roped into yet another anti-user scheme.

And yes, passkeys absolutely ARE a trap.

[0]: https://github.com/keepassxreboot/keepassxc/issues/10407#iss...

> When it is present, WebAuthn attestation tells the site the make and model of the authenticator, identified by its AAGUID, with a certificate chain from the vendor to back it up. It says nothing about your OS, your browser, your extensions, whether your phone is rooted or jailbroken, your firmware version, or even what colour it is.

"Model of the authenticator" could say almost everything about these if the model was let's say "Google Pixel 10". TEE would refuse to sign the attestation if the bootloader was unlocked / AVB didn't verify.

YubiKey attestation is not a problem because the device doesn't work against me in such a way it would require installing custom software on it. And even if YubiKey went crazy, they're not a monopoly.

Situation with smartphones is very much different..

I simply was not convinced there was a tangible benefit over password + 2fa when using a password manager. And the inability to move the passkeys is not acceptable. Similarly the failure modes of the passkeys vs password + 2FA were never clear.

This dude doesn’t get it at all, but like some kind of virtual Karen he’s actively making the web noticeably worse and more annoying for the rest of us.

I can’t get phished if I use autofill. It’s that simple.

Some context I think is missing: TFA's author claims to use passkeys for 2FA (and so, not as a password replacement as I think is often implicitly assumed in discussion):

> This one can be tricky because I've seen many sites using passkeys to replace passwords, but that's not something we've done on Report URI, passkeys are used as a 2FA mechanism.

Source: https://scotthelme.co.uk/xss-is-deadly-for-passkeys-the-hidd...

A lot of (good) debate about the usability, etc when using passkeys for all/many of your "everyday" sites.

Setting that aside, I would suggest people strongly consider them for their 2-3 most critical sites. You primary email, your main bank/investment account, and any cloud infra / dns registrations you have.

IMO, for these the trade-off between usability and security is strongly in favor of passkeys. I use 4 hardware keys for these accounts (USB-A and USB-C on my keychain, USB-C in the laptop, and a USB-C backup locked away).

Ironically, the post intended to refute the original author's arguments ended up inadvertently proving their point.

I use ProtonPass on every device I own (religiously) and have never had an issue. But it's because I'm very careful to only deal with any credential ever via ProtonPass.

I can imagine it gets annoying very fast if you accidentally put a passkey in the wrong place, ie because Chrome proposes it's own credentials store.

ProtonPass also lets me export the private parts so I'm not stuck as with some passkey managers.

Passkeys are great but require you to understand some things about them, and you need discipline in dealing with them.

As far as I've read here before, device attestation is definitely there, it's just not being used (one of the big tech namely Apple is balking... maybe they have their own means or plans in their ecosystem).

My main reason for not using it is I'm not interested participating in a scheme where I do not own/access the private keys and being able to use them and store them the way I want to.

I'm fine with TOTP and sure, I understand it's not phishing resistant by itself.

I don't know man. We use the Microsoft thingy at work and every time I sso somewhere, it nags me to create a passkey, and when I say "ok fine" it wants me to also add a PIN or something, so even more to remember.

No thanks, I'll keep using the MS authenticator on my phone for 2FA instead.

Btw: sites cannot phish my passwords if only the browser remembers passwords and ... drumroll... binds them by site, just like passkeys.

Every point in that post has been discussed at length other places, some of which is in the HN thread the author mentions. And the discussions make it clear that the points being made are not seeing the problem - not that there isn't a problem.

Passkeys have benefits - but they also have problems. Many people just don't think the benefits are worth the problems. And many people are afraid that sites will just stop accepting passwords in favor of passkeys, leaving people worse off.

Passkeys are still a trap even if consumer passkey implementations don't currently support attestation. They are still ridiculously anti-consumer, overrated, and definitely still a risk for the open web because the door to attestation is right there.

Why does my bank (Chase) allow iCloud but not KeePass XC? Imagine if my bank got to choose what password managers I was allowed to use to write my password into. That is literally Passkeys, with optional cryptographic enforcement that people promise won't be used for anti-consumer reasons. (People. Not Microsoft or Google or Apple, but people.)

Secure Boot and TPM were also billed somewhat similarly in different times and now Windows 11 requires it and a lot of software and games require remote attestation with secure boot.

This cover story has already been used before, we already saw where it leads. Will people be foolish enough to believe it wouldn't happen twice?

Passkeys are great for developers who are into cryptography and security, and who understand the idea and implementation behind it. For the rest of us it's something to avoid.

I don't use passkeys anywhere for fear of losing access. I just don't care enough to study how it really works. With passwords, I occasionally print out all my important passwords and store them in a safe and I know there's no way I could lose access.

Based on all the passkey threads I am going to hold out for 40 to 80 years before testing passkeys to see if companies can resist the temptation of vendor lock-in shenanigans. In the mean time my focus will be on cellular age reset so I can last long enough to see how passkeys play out.

The og article talks about future concerns even though things are fine today. This article claims things are fine today.

True, but doesn’t actually refute the original.

> WebAuthn attestation tells the site the make and model of the authenticator, identified by its AAGUID, with a certificate chain from the vendor to back it up.

How's that not just a terrible idea that leads to all of the aforementioned scenarios?

By adopting this you give the site ability to require a specific app and/or hardware for keeping your keys.

I introduced Passkeys in my company.

Every single IT person thought it would be an extreme mess, too complicated for regular users. In my company we work on the (gas) grid so lot's of blue collar types.

We went there, gave the pilot group a Yubikey and said: This is like the company pass you already have. Without the company pass you cannot enter any buildings. Without the Passkey you cannot enter a computer or app.

If you lose it report to the same people (service desk).

The response has been EXTREMELY POSITIVE. People fucking LOVE getting rid of passwords, password requirements and taking off their gloves to enter it every time.

We are now rolling it out to everyone and next year when we stop our silly "phishing game" contract we will actually save money while reducing a massive cyber security risk for our company: (voice) phishing.

  • > If you lose it report to the same people (service desk).

    THIS is the reason it worked great for your use case. You have a stopgap for the worst case.

    You also have a limited, well-known, and mandated set of compatible software and hardware. And you don't have to worry about attestation preventing you from using any future hardware or software, because you have control over any attestation whitelists.

    The scenario people worry about is not "passkeys being mandated by your company to access company webapps on company-provided devices, with easy access to in-person passkey resets". The scenario people worry about is passkeys making them lose access to third-party sites on their own devices.

  • Perfectly fine in a business environment where you don't have privacy. It is unacceptable for any personal computer(including phones) to be leaking unique ids so you can be tracked.

There is still one reason I still do not use passkeys when I can't use my TOTP with it:

I was using TOTP with passwords as additional security if my password manager were to be ever hacked. Passkeys are an enhancement over passwords, but they won't replace my 2FA with TOTP.

I truly believe pass keys are a way for yo to eventually lose access, or give someone or something else, access to your logins.

"AAGUIDs are unique identifiers assigned to FIDO authenticators (including passkeys and security keys) and are used to identify authenticator models for attestation and metadata purposes."

If there is any unique id that can track you, then it's a trap. No security system should be leaking unique ids that can be used to track users.

  • AAGUIDs are not unique to authenticators. Hundreds of millions of people using the same product have the same AAGUID.

I think it's a bad sign when someone immediately resorts to strawmen and argument from incredulity in their counter-argument:

>If a consumer website decided tomorrow that it would only accept attested passkeys, it would lock out almost all of its own users, instantly. What website is going to do that?

The original didn't argue that, nor has absolutely anyone else concerned, nor has that been what has happened in historical examples people were concerned about. Because yeah of course that's ridiculous, it's "boiling a frog" by throwing it in already boiling water, that's not how it works. If anyone has freedom-reducing longer term plans for use of passkey attestation, the emphasis is on "longer term", being malicious doesn't mean being stupid. Step 1 is obviously getting people into the passkey ecosystem and out of passwords at all, which could well take years. And importantly as much as possible into closed passkey ecosystems. This is indeed one of the initial danger signs, because the author:

>iCloud Keychain, Google Password Manager, 1Password, Bitwarden

Is mixing together things that aren't like the other. Quick author, what's the EXPORT story for each of these ecosystems? Of those, Bitwarden can export a passkey into a plain JSON if you want. Do the others support that too, or at best only "app to app" encrypted transfer, creating a closed ecosystem? Already, can I get passkeys from iCloud/Google/1Pass into KeePass? Or is this restricted """for my protection :^)"""?

Author doesn't even touch on the lock-in that's already beginning. And right now everyone can technically claim "oh no of course you're not locked in! You just have to use an official option, or you can merely visit hundreds of sites individually and register new passkeys in all of them". Is it hard to see how players like Bitwarden would be pressured on continuing to offer plain export?

Then when most of the population is using passkeys everywhere in a closed ecosystem, now what is the response if friction slowly starts getting added. OK, you can still use what you like, but only export to other approved players. OK, you can still use unattested, but it's off by default now, "advanced users" can go enable it with this checkbox in the settings. OK, manual is still an option, but now it's buried deep and behind dark patterns and requires a text command. Hi everyone, we have statistics to show that only 0.85% of our users still use unattested keys. The support burden and security risk is now too high."

Like, we've seen this movie before.

As a user if you push something too hard I immediately think what the angle is. That is how i feel about passkeys.

  • Reminds me of when The Powers That Be forced me to connect to websites with HTTPS. Then they stopped supporting Internet Explorer 5. What were they trying to hide?

    • I did think about that, and the answer was fair enough, they don't want MITM. None of these details about passkeys make any sense. The author hasn't explained why this isn't a simple public-private keypair.

Question for passkey advocates, Is there is conformance test and is it comprehensive for all of a user's use cases (multiple devices, multiple passkey service providers, multiple accounts with the same service on the same device)

It the answer is "no" and you can ship an passkey implementation without passing a comprehensive conformance test then basically passkeys will always have issues. You can not get a million devs to do anything correctly unless you have a way to force them to do it. Given Google/Apple/MS are effectively gatekeepers (I know people will hate this idea) but, you could make it a requirement to pass a conformance test before the gatekeepers will issue a passkey. Same as cert authorities.

Anything else IMO is doomed to fail. More sites than not can't be bothered to use input type="email" or type="number" when all they accept is numbers or email. What hope do we have they'll use passkeys correctly?

The counter-argument he makes against people's concerns about attestation is laughable, all he says is that it hasn't happened yet.

Passkeys are not designed just for security, there are other corporate interests involved. It's impossible to share logins for example. He even mentioned this concern and didn't address it.

The device/app lockdowns are already real for TOTP - Microsoft and others insist on using their snowflake authenticator instead of using the standard protocol. So it's not unlikely that they will extend that kind of lock-in to all passkeys.

Lot's of additional great information for consumers and prosumers at whatarepasskeys.info. Many of the questions that are constantly discussed in these comments are answered in the FAQ and content.

Contributions and feedback are welcome! GitHub link is at the bottom of the page.

  • Why are passkeys designed in a way that I can't copy the private key as text to import into whatever password manager I want, even as an advanced user?

    • You can. Choose a credential manager that offers that feature.

      I just don't think that's a good idea for most users. Imagine an older relative being coaxed into exporting all their passkeys in plaintext and uploading them to a website.

      1 reply →

So we have one article that contains factually questionable info and one article is written by a biased source.

Can’t wait for episode 3! Hopefully someone knowledgable pulls it all together into a season finale

I'm moving my HSA because the company moved to passkeys.

I use unique email addresses and passwords, stored only on my devices(Linux, Windows, Android) using open source software (KeepassXC, KeepassDX). Passkeys add new friction I don't need.

I do not understand how people have issues with passkeys. I have used them on my iPhone, my Android phone, on windows, on Linux, and on macOS without issues.

Almost every complaint I see about passkeys seems to be based on behavior and configurations I just do not see in the real world.

“Once I set up a passkey I can’t log in from another device” - have never seen this to be the case. Existing password / OTP codes have always worked as a fallback if syncing somehow breaks.

“I don’t want to trust Apple/MS/Google with my logins” - so don’t. Use bitwarden or 1Password or lastpass or whatever you want to store your passkeys.

“If I lose my phone I’m screwed” - see #1 and enable sync maybe?

Boils down to I believe a lot of folks looked at passkey implementation at a high level, saw some potential pitfalls, and never actually used them to discover those pitfalls have all been accounted for.

Go ahead and skip passkeys if you want, but stop preaching about evils that don’t exist.

  • People used to complain that some password managers like Keychain don't let you transfer passkeys at all, but this was fixed. The problem is, passkeys can designate themselves as non-syncable and/or only allowed to be stored in certain password managers / hardware.

    There are comments here about companies that already force the use of Microsoft Authenticator, which forces you to use a locked-down phone.

  • “Once I set up a passkey I can’t log in from another device”

    This literally happened to my grandfather yesterday (well, I found out about yesterday, anyway). Dude just casually mentions that he can only log into his webmail on his iPad, and I immediately knew what was up.

    "so don’t. Use bitwarden or 1Password or lastpass or whatever you want to store your passkeys." -- All fine and dandy until they decide to start using that attestation feature that they 'pinky promise' they won't use for nefarious purposes.

    Passkeys are literally evil, and exist exclusively because 1) companies are evil, and want nothing short of complete and utter domination of their users' lives and 2) one CEO is embarrassed that he was too stupid to realize that "my password manager isn't autofilling" means "I'm on the wrong website".

They don't solve a problem I have. So I am not eager to adapt them

  • And additionally they cause problems I didn't have.

    • Exactly.

      I'll stick to passwords in my passwordstore.

      If this is no longer possible, then so is my participation in many services.

I'd expect a passkey to work like SSH keys except stored in a password manager. I should be able to copy that key like a password if I really want to. It's apparently so much more complicated than that. Unless someone can tell me why exactly the other stuff like attestation is needed, rather than just saying it's not that bad, I don't trust it.

Wouldn't web browsers themselves be the ultimate passkey managers like they already do with passwords? They'd need a way to export the passkeys to another passkey manager though.

Passkeys are confusing, fragmented, awkward, and annoyingly implemented. They aren't a trap, but they are far less efficient and less proven than a password and app-based MFA.

domain binding requires browser participation.

you can have a TOTP variant which has the browser display a challenge string & QR code, authenticator generates a 5-6 digit response. include more entropy in the response if you want to do away with the password entirely.

passkeys are trash, I would never opt for dedicated hardware (or a cloud service) and using them with a password manager is extremely messy when you want the password manager to be properly isolated from the rest of your system.

recently I've gotten back into the BBS scene, particularly those accessible via ssh. its refreshing to have auth become simple again, and to often have the option of using the same kind of pub/priv key pairs to access BBS as I have any other Unixy host online, for decades. The UX is simpler, theres more privacy and personal control.

Thank you for posting on this. The last post on passkeys was utterly confusing and I have been thinking about this until yesterday. I had done some research for a client and had referenced your blog. This whole FIDO2 cryptography-based passkeys system is confusing even to a technical person, let alone convincing the general audience. After bringing together all the different types of passkeys, I had categorized them into three main categories:

1> Synced Software Passkeys (e.g., Google Password Manager, Apple iCloud Keychain): Encrypted locally but synchronized across a cloud account.

2> Device-Bound Software Passkeys (e.g., Microsoft Authenticator app on a phone): Only inside the physical device's secure hardware chip.

3> Device-Bound Hardware Passkeys (e.g., YubiKey, RSA iShield Key): Permanently burned into a dedicated physical USB/NFC chip.

I advocate for "Device-Bound Hardware Passkeys," but not many websites support them. Keeping a duplicate hardware passkey is important in case the original hardware key is lost.

I figured they weren't. People smarter than me made them.

I think they've been implemented well in some cases. I think they've been implemented poorly in others.

So it goes.

I mean the desire to trap seems to be among the big corporations already.

I keep seeing major players promoting their own apps over standard TOTP, which I guess could be seen as a sort of proprietary passkey. Shopify, Google, Microsoft, and more, they all want you to download their app for MFA, instead of using a very open format.

As someone who works in IT, I just can't even imagine myself doing this. I have probably around 60 codes in my Aegis, how would it look if I had just a quarter of those in apps instead?

But the main issue I have with passkeys is the simple issue of backups. I can backup my Aegis keys, I can't backup an app, or a hw passkey. I have to get a second one, and keep signing for it or something, not sure of the details, I just know it would be a major hassle. And there is no way I'm trusting a little usb device to not break.

Right now I see no compelling reason to switch from regular OTP codes, change my mind.

  • > Right now I see no compelling reason to switch from regular OTP codes. Change my mind.

    The phishing potential?

    • I completely misunderstood passkeys.

      Just came back from doing a bit of research and apparently I can use Bitwarden to generate and store passkeys.

      I have been dismissing the entire concept because I assumed it had to do with hardware keys, which I would never trust. But if it's bitwarden, then I can easily do a backup, and that would be very reliable.

      I think I'm going to start using passkeys... :D

      2 replies →

That's what the passkey industrial complex wants you to believe.

Its a solution not made in mind multiplatform people.

> If you want to be able to move your credentials around, pick a provider that supports that.

Example providers?

"Is not a trap" does not follow from "Is currently good".

A defining feature of traps is that they start out good.

There are a lot of good points in this article, but it fundamentally missed the point of the word trap. The most it said on that topic is:

  > If a consumer website decided tomorrow that it would only accept attested passkeys, it would lock out almost all of its own users, instantly. What website is going to do that? Besides, the guidance for consumer sites has been to not even request attestation for years now.

Which is a statement about the near future. There is room for a conversation about the long term, but this article is not a part of that conversation.

I would like passkeys if they had an ssh key option (something I can store on my device and transfer).

These guys are so dedicated to protecting us from ourselves that they won’t provide any mechanism to export passkeys and port them between devices because it might be used for phishing. It’s just fucking annoying and presumptuous. No im not going to fall for phishing, i need to have some escape hatch to get the data.

Attestation lock down is also ALREADY a real thing. Microsoft sites (and others) frequently require you to use their bespoke 2FA app instead of using the open TOTP protocol. They will do the same thing when it comes to deciding which devices and software are allowed to login, and everything outside the corporate slop safety bubble will be denied.

I don't like them, they offer no advantages to logins with random passwords. They would only be more secure if they were forced to be stored on hardware devices like Yubikeys, which almost never happens in practice. In reality it's true that they can be dangerous because they can be set up in a way that doesn't allow storing them in software and using them on multiple devices, and such device-bound passkeys will eventually lock you out or be reset in the same way as password+login (usually just by email).

The standard and implementations are also unnecessarily complex and obtuse. IMHO passkeys are not a good technology.

I try to avoid passkeys as the UX is just not good.

But what is the solution here does anyone know how to make this good?

At the end of the day, I just don't really want them. I already have passwords and I already have to put up with 2FA. Passkeys are just one more damn thing to understand in an ecosystem I already want to spend as little time in as possible.

When a website forces a passkey into my password manager without even asking me (fucking Amazon), it is pretty unambiguously something that is not good for me.

QED, a trap.

I hate passkeys because they're always tied to a specific account or a device like a phone. I hate being dependent on phones/devices. That being said I know they solve a lot of problems so....

I still prefer a good password written down in a paper book, with multiple methods of 2FA. But I know there are attack vectors for that.

  • Syncable passkeys are a thing which the OP addressed. Apple, Bitwarden, and other password managers all implement syncable passkeys. In fact, I just did an upgrade of my iPhone 15 Pro Max to an 18 Pro Max and all of my passkeys came along with the upgrade.

    • I don't think it's appropriately addressed. The apple ecosystem has really good syncing between devices but only when they share an iCloud account. What happens when your work mac isn't permitted to use your personal account? What happens when your company issued password manager and your personal one fights? What happens when your company issued device is an Apple device AND you have to use a mandatory password manager from the company?

      The problem to me is that passkeys assume the user owns the device and CAN choose to make a single store authoritative for their credentials. The only professional environments I've encountered that haven't/wouldn't hit this issue are ones small enough that they don't really have device or security governance in place which you can't use as a secure reference baseline.

      1 reply →

    • What if I don't want to use a phone any more and just use Linux without a password manager?

> The passkeys most people use are synced passkeys, stored in iCloud Keychain, Google Password Manager, 1Password, Bitwarden or whatever other software of your choosing

Sorry but this is the whole problem with passkey: you are forced to rely on a 3rd party to take care of your credientials, on their computers, with their software. This is like a text book example of a trap: someone set up something that looks harmless/invisible, you walk into it, and that someone now has some leverage over you.

I absolutely love them now that I have a Mac. They're shared between my phone and my Mac automatically so I can just sign in to anything with my fingerprint.

Passwords just suck. If we're all going to use password managers anyway, what is the point? Might as well use a randomly generated passkey.

What's annoying about passkeys (and not talked about enough, including in this article) is that passkeys seem to be a boon for the targeted-advertising industrial complex.

Since passkeys are tied to verified devices, they guarantee absolute de-anonymization -- and further spread that advertising "wealth" by seamlessly linking across devices, and therefore to their respective corporate stakeholders (i.e. via bluetooth to conveniently login on a laptop via a phone-domiciled passkey).

Username + password at least requires circumstantial marketing analysis to "verify" whether a user is who marketers think they are. But with passkeys, your login confirms your Windows account ID, cell phone MAC address, home address, what have you.

  • AFAIK passkeys are specifically designed to avoid this. Normal passkeys contain no information about the device or software that is storing them (each key is specific to one website), and even with attestation (which I hate), the attestation reveals only what kind of device you are using (the keys are shared across many devices, usually one key per design).

> When it is present, WebAuthn attestation tells the site the make and model of the authenticator, identified by its AAGUID, with a certificate chain from the vendor to back it up. It says nothing about your OS, your browser, your extensions, whether your phone is rooted or jailbroken, your firmware version, or even what colour it is.

This is grade A horseshit. The end goal is for enterprise passkey managers to not boot up at all and not unlock their encrypted stores if hardware attestation isn't available. There's no use in attesting a certain password manager vendor if the platform isn't helping to avoid impersonation.

Passkeys seem like a damn good way for me to end up losing my various account/history because it suddenly decides that it's expired or invalid or not available from that password manager anymore.

The various implementations have a huge "trust me bro" feel to them, and I don't feel like spending 3 hours on the phone to Amazon talking to an AI in order to not get my account back to bother with them. And the underhanded way they keep trying to slip them by me bothers the shit out of me. Something sketchy is going on, and it isn't in my best interests is the feeling I get every time it pops up.

"A passkey is bound to the domain it was created for, so your browser simply won't use your example.com passkey on examp1e.com." What happens if a service you use loses its domain? For example, if I run a marxist online forum, it could happen at any time that the US regime sanctions my site and seizes my domain. Would my comrades still be able to log in with their passkeys?

I don’t understand why the sites I’ve already set up with TOTP are trying to force passkeys down my throat, using dark patterns to try to trick me into it, and making me click extra times just to log in!

Makes me think there is some sort of conspiracy, even if this is reasonably argued and seems true.

Nope. The point of the original argument was the path to autocracy, not the current state of things. This article focuses on the here and now. The point is the trap is in front of us, we are not in it yet. Stop talking about how nice the bait looks everyone!

What I despise about passkeys is their opacity. Maybe it's skill issue, but I can't open my Bitwarden vault and just "see" them. I guess it's by design. Still, this makes me feel not exactly in control.

"The post makes what appears to be one central claim: Passkeys support something called attestation, which lets a website ask for cryptographic proof of what made the passkey."

The Substack blog post focuses on "control", specifically the control that users might sacrifice by using passkeys:

"What's important to know is that unlike with any other kind of login credential, you do not have ultimate control over your passkeys. "

"With passwords, you can choose where to write them down; with authenticator apps, you can decide for yourself which ones to use (they're pretty interchangeable); and with physical security keys you can hand them to your colleague if you really trust them."

https://fidoalliance.org/metadata/

"MDS acts as a global registry of passkey capabilities and equips your FIDO server with the intelligence needed to make data-driven decisions about which devices are allowed to access your systems."

Some users may be concerned about websites requiring them to use particular hardware and/or software

There is nothing inherently wrong with MDS

But it could be used to exclude users with "unacceptable" computers and/or "unacceptable" software

Will it. Who knows. That's not the point

"TOTP Is a Step Backwards"

"A passkey is bound to the domain it was created for, so your browser simply won't use your example.com passkey on examp1e.com. "

"This is the problem that passkeys solve."

This seems like a relatively small step; tradeoff for TOTP users seems worth it

>here’s why you should use XYZ!!

Few weeks later

>let me tell you why you should NOT use XYZ!!

Classic HN.

That being said, password and 2FA is the best combo, where you control the token of the 2FA and it’s on a separate app/platform/etc than where you have your passwords.

A usability dumpster fire. At least it gives university professors something to make into a "how not to do usability" class.

lmao. they are a trap. have you even used one? they are tying you into icloud or google or microsoft ecosystem. can't sign in on places once you have passkeys. no 2fa or anything is available except waiting for some support. this is such hot garbage, it doesn't even deserve a read

It's like with iso 8601.

- we support iso 8601

- really?! Like P1Y2M3DT4H5M6S?

- err, no, I mean 2026-12-31

100% correct takedown of the "Trap" article

Do passkeys have issues? Sure. Most of them are UX and are being worked on. As a user, I 1000% immediately register a passkey when a site or app offers it as at least on iOS and macOS, it is a superior user experience IMO and more secure. I never worry if I'm getting prompted for a Passkey, am I on the right site?

Also the remote connect functionality of modern browsers and mobile operating systems makes it trival if I need or want to sign into a personal account on my work PC where my personal passwords are not sync'd. Need to get into my personal GMail in an incognito window at work? No problem at all.

Anti-Passkey folks are just people who want to be against something to be against it

  • Google and other services like PayPal make Passkeys default if you generated one.

    Now they expect you to always use them to login on all devices.

    I had to remove my passkey from one device for these services because i also use a PasswordManager and I do not trust my local chrome installation to just manage my passkey.

    I want to have a Password Manager which I need to unlock when I use it. I also want to keep my 2fa and not break it due to passkey usage.

    GitHub was also super shitty with it, suddenly a passkey broke my YubiKey login...

  • One of the bigger issues with passkeys has been that they get locked to one provider (like apple in your case). Now i HAVE to use an Apple device to unlock passwords, same with Google and Android. Its very much all eggs in one basket.

    If it was easy to migrate between services, then i would be a lot more open to using passkeys.

    • Too add to my own comment: I know that its coming, but until i can export to something like. keepass and not a commercial entity then i don't consider it ready.

      2 replies →

    • It's fairly easy to export/transfer passkeys (I think, I've never actually done it)

      Also, many if not all of the sites I've got passkeys setup with support multiple keys, which I sometimes take advantage of. For example I've got a passkey into my Google account in my Apple account ecosystem but I also have a physical Yubikey setup as a Passkey device, in case I were to get locked out of my Apple account

      3 replies →

  • I think PassKeys are great.

    On my MacBook with the latest macOS I still can't use them.

    I use Brave and 1Password. Clicking the Use Passkey button typically results in some Chrome Bluetooth permission dialog rather than accessing my PassKeys.

    I tried to look into this once or twice with no success.

    I suspect macOS is at fault. Apple does not seem to care about getting basic functionality right.

    To this day Universal Clipboard between the MacBook and my iPhone does not work half of the time.

    • > To this day Universal Clipboard between the MacBook and my iPhone does not work half of the time.

      Do you have bluetooth disabled half of the time?

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  • Let's hope your iphone doesn't get stolen or smashed and your beloved passkeys lost

    • Well, they're synchronized to my Apple account so that's not an issue. They're available on all of my Apple devices, or even ones I don't have right now that I log into in the future

      Plus, none of the sites that I use passkeys for would I be locked out. They all have account recovery procedures just like if I forgot my password. And, finally, for the important ones like my Google account (where my email lives) I have other non-Apple devices like a Yubikey setup as additional Passkey/FIDO authenticators

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    • Why would they be lost? They are synced to iCloud Keychain, which is E2E encrypted.

  • It's just not a replacement for TOTP and password entirely. It's a shortcut, a super-cookie that is more secure. If I lose the device that has my passkey, I need a way to access my account from another device.

    One might say "just use a password/credentials manager", but all these passkey prompts don't emphasize that you should use one that is not tied to hardware, or that you should backup your passkey to a thumb drive, or anything like that.

    Same reason I hate TOTP that is tied to a device. If you require me to have proprietary 2FA apps on my phone to login to your account, I don't use 2FA. Looking at you, Steam.

Thankfully someone with some sense. I saw that post title and didn't even bother to read it. It sounded like someone having argued with me a decade ago that IPv6 is a mechanism for the government to track you because you have no more privacy anymore because you don't have NAT...

  • I’ll be silly, but having a unique address per device, is indeed a simpler vector to track, right?

    On topic, I’m not sure I even trust my own password sanitation, and seeing service A and B hacked every other month, I feel weary. Knowing that someday my passwords might be compromised as well, so what should I do as just a person who can’t remember things? Write them down, I guess.

    • It's common for devices to choose a new IPv6 address within your range at random to perform a new connection / rotate periodically.

      Which in turn makes it harder to track vs. your /64 which is approximates your old NAT'd public IPv4.

  • This:

    > Thankfully someone with some sense

    Cannot be asserted with this:

    > I saw that post title and didn't even bother to read it.

  • Why didn't you bother to read it but still think they have no sense?

    • Because, apparently, passkey evangelists are a cult.

      The spec requires passwords to still be an option, they say, so there's nothing to see here, move along — and avert their eyes should an inconvenient argument come their way.

      Because, see, we all know that specs are ironclad, never change, and are always fully implemented.

      Also, putting all your eggs, ahem, passkeys into one cloud basket (as this article recommends) to "move around" is surely the most best solution better than passwords.

      Because we can always trust the cloud, right? Not like it's somebody else's computer or anything, that they can instruct to not do what you tell it.

      Anyway, none of the passkey lovers ever answered me what to do if my computer and cell phone ever get stolen again when I'm traveling abroad in the Brave New Passkey World.

      The best answer I got was carry a yubikey with me at all times.

      One more thing to worry about losing, yay. Much convenience, very security, wow.

      If there are any new developments on that front, would love to hear them.

    • Because I too understand passkey attestation and have written code to do exactly that and have worked in multiple enterprises where we've done a mass Yubikey rollout across thousands of people. So I've got a pretty solid understanding of passkeys, yubikeys, and attestation. As well as I don't read headlines of people claiming it's "tracking you".

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