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Comment by SchemaLoad

2 days ago

Passkeys get synced between your devices so they aren't any more fragile than passwords in a password manager.

Passkeys _may_ be synced, but that isn't guaranteed. For example a "device bound passkey" isn't synced.

  • There is a project under way to specify how to "sync" device-bound keys between authenticators: https://fidoalliance.org/specs/cx/cxp-v1.0-wd-20241003.html

    Ideally this should have been hashed out before deploying passkeys everywhere, but I guess you can always register multiple passkeys for the sites that allow you to.

    • Iirc the original idea was that passkeys should be device specific. Of course that's impractical so now they're morphing to a long password that a human can't process.

      In a few years someone will post "how about a long human retainable passphrase?" as a new and improved discovery.

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The big providers only want themselves to be able to backup passkeys. I do not want to handover my secrets to Apple/Microsoft/Google.

  • Apple Keychain syncing is end-to-end encrypted, Apple cannot see the contents of your synced keychain.