Don't use passkeys for encrypting user data

Re:Don't use passkeys for encrypting user data by trueismywork on Saturday February 28, 2026 @06:38PM (#47201741)

Passkeys IMO will only work with dedicated U2F/FIFO keys like Yubikeys.

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Re:Don't use passkeys for encrypting user data by RGamma on Sunday March 01, 2026 @10:35AM (#47207632)

Beware that Passkey storage is limited though and I don't think you can reuse one for multiple sites. My Yubikey 5 NFC stores up to 32 and you should have some redundancy if you ever lose it. You also can't export them. I only use passkeys (in Bitwarden) for things I don't care about.

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Re:Don't use passkeys for encrypting user data by encrypted_bird on Friday March 06, 2026 @11:21PM (#47284451)

As someone who's looking into possibly getting a YubiKey 5 NFC actually, I would like to ask: if you can't export the entries, if you make a backup of the YubiKey (perhaps with the magic of buying two of them), then how would one ensure redundancy?

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