Think about it. Really think.
But what if someone hacks your phone? Or you need to log in to multiple systems that use your fingerprint for access? Or you get stopped by a cop, and they make you open your phone?
All of these scenarios stem from the same problem: Systems are using your fingerprint as your password. But if your password gets compromised, you have nowhere to go. And it leads to the same issue:
If your password gets compromised, you can always generate another password. You can’t generate a new fingerprint.
Instead, reverse those Username and Password sections. Your fingerprint is your username. Once you do this, things start making perfect sense.
Of course a fingerprint is your username; it’s the quintessential indicator of who you are. And you can use it as a replacement for your name in two-factor authentication: something you know (your password) along with something you have (your fingers). Unlike a key dongle, you always have your fingers with you, and you never leave your brain at home either, so you’ll have your password too. Problem solved!
Now all I have to do is convince the richest tech company in the world to go along with me. Easy peasy lemon squeezy.