For most people, their threat model is someone in their home, office or circle of acquaintances snooping on their computer - either casually or with criminal in

For most people, their threat model is someone in their home, office or circle of acquaintances snooping on their computer - either casually or with criminal intent but little savvy. These are not sophisticated actors, they are not lifting fingerprints off glasses. Anyway, Yubikey is only a second factor - not your entire security strategy - and I think it is made a bit stronger with a biometric, thats all.