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Passkeys are not a trap. Use them! (hachyderm.io)
submitted 2 weeks ago by to c/privacy@lemmy.ml
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A rebuttal to an anti-passkey, pro-TOTP post that has made the rounds on Lemmy as well.

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[–] 2 points 2 weeks ago* (last edited 2 weeks ago) (3 children)

passkeys can perfectly be used with third party password managers. everything you say here can apply to passwords if you use the Os provided manager.

you can absolutely have 2fa with passkeys. most platforms don’t do it since it adds little value

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  • [–] 3 points 2 weeks ago* (2 children)

    Os provided password manager

    That's the neat point. You don't have to use one when you enter your normal login credentials and the average user like does not use one.

    But with passkeys you are forced to use one and the average user will use the default one of their vendor.

    most platforms don’t do it since it adds little value

    Yeah because they obviously don't care about security (like machine compromise - that's why there is 2FA in the first place), which contradicts all advantages of passkeys.

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  • [–] 1 point 2 weeks ago* (1 child)

    every single argument I've seen against passkeys could be said against TOTP and 2FA in general.

    • SMS token: they need to know your phone number. it's a privacy issue. also actual lock in to one device.
    • MS authenticator with push notifications: actual lock in to a single app
    • TOTP: you need a manager to store it, way more phishable than passkeys

    and yes, you could use third part TOTP managers, but as you said, the average user wont. I dont feel any argument against passkeys is particularly strong.

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  • [–] 2 points 2 weeks ago* (last edited 2 weeks ago)

    Who has used as argument that passkeys are phishable?

    The argument is that passkeys include "attestation" as part of the official standard, which is a method explicitly intended for services to be able to securely identify what local authenticator you used with the explicit purpose of allowing the service to reject access if it's not considered "safe". Can you say that about TOTP?

    The problem is not the general idea of passkeys.. there are actually good things in the standard. The criticism was that there's also a part in the standard that seems perfectly designed for companies to use them in anti-consumer practices.

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