Fingerprints can be changed as easily as a username. Simply never use the "raw" ...

_red on Oct 23, 2014 | parent | context | favorite | on: Fingerprints Are Usernames, Not Passwords (2013)

Fingerprints can be changed as easily as a username. Simply never use the "raw" fingerprint output of the device, instead XOR it with some key (like either something from factors 2 or 3, or simply a static key).

Retric on Oct 23, 2014 [–]

That's not changing the fingerprint that's using another password.