Comment by dfabulich
7 days ago
Passkeys are stored in your password manager, too. You'll only lose access to your passkeys if Google is your password manager and you get locked out of your Google account. So, if you don't trust Google, use another password manager. (May I recommend Bitwarden?)
The advantage of passkeys is that no one can trick you into giving your passkeys to the wrong person. Every time this comes up, people say "I don't need that! I've got a password manager. I'm too smart to get tricked." But they are wrong.
The concern is that the site you're logging into can tell the difference between a passkey created by Google on a (recent, non-rooted, locked bootloader) Android device using its cryptoprocessor, and a passkey created by Bitwarden which you can sync/backup as you like. And Google, Apple & Microsoft are well positioned to encourage people towards the former over the latter.
The possibility that sites will require attested keys does seem pretty remote at the moment, but if passkeys take off and >95% of people use keys tied to their phone, I could totally see sites starting to prevent you using a key from Bitwarden. I don't think there's a conspiracy trying to achieve this, but the incentives of security & lock-in could push us there.
Exactly. We saw this with banking apps forcing use to use insecure but attested devices for their insurances. Fool me once... no thank you to passkeys for now.