What is analog authentication? FIDO is a general protocol, it doesn't mandate fingerprints or say how to recover if a fingerprint scan starts failing to match.

What is analog authentication? FIDO is a general protocol, it doesn't mandate fingerprints or say how to recover if a fingerprint scan starts failing to match... that's up to the implementer (the site you're authenticating to). Watch some other videos or read more docs on FIDO for a better idea of how it works. It's a generic protocol for 2 factor authentication done right.