Post #1579160
2026-02-28 19:46 UTC
Tangential to the main point you're going for: when you say fingerprint or biometrics I think you're referring to passkeys.
Passkeys don't share any of your fingerprint or other biometric identifiers with anyone.
https://www.eff.org/deeplinks/2023/10/passkeys-and-privacy
One of the major design criteria of their creation was to be an increase in security without sacrificing privacy. It's made them more finicky to get working but there's a very good reason they're very popular with security professionals.
Replies (1)
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@partofthevoice@lemmy.zip 2026-02-28 22:33
They are not referring to passkeys. They’re referring to deterministic algorithms for uniquely labeling a particular device or person, despite any privacy enhancing features that device or person employed. It can be as simple as sampling various hardware specs, hashing the result, and using that as an ID for the person. So, if you switch browsers, they know it’s still you. More complex techniques exist, obviously.