A rebuttal to an anti-passkey, pro-TOTP post that has made the rounds on Lemmy as well.

  • Ferk@lemmy.ml
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    2 days ago

    There are actually 3 categories (though the idea of 2FA is picking 2 out of 3):

    • Something you know (passwords, PINs, security questions…)
    • Something you have (hardware keys, TOTP, smartcards, SMS/push-notification…)
    • Something you are (fingerprints, facial recognition, iris scans…)

    But passkeys collapse 2 of those into one by having the passkey algorithm include (as a step of the key derivation) a passcode or some biometric data… that’s why most passkey systems require some form of verification. Though it’s up to your authenticator which method is used.