[jdeisenberg]

If your face becomes your password, what happens if you are in an accident and get a broken nose, lose a couple of teeth, and get some stitches? Will you be locked out until you heal? If there’s permanent damage to your facial structure, how do you “reset your password”? (I will admit I have not done a thorough survey of the existing literature; I’m guessing others have thought of this problem and it has long since been solved.)

[mewse-hn]

I refuse to use any FaceID system but the fingerprint scanner on an iphone is just a quick-access unlock vs a manually entered passcode/password. Eg. if you lose your thumb that unlocks your cellphone you can still enter your full length password and reconfigure the biometrics.

Seems like this article is about a new consortium trying to do global single sign on and is selling it as "no more passwords!"

[evilduck]

The article isn't stellar about explaining what they mean. FaceID and TouchID as implemented by Apple requires you to type in your password every couple of days to ensure you don't forget it. They augment your password (and weaken overall security) but they don't replace your password. I can't speak to every similar Android and Windows implementations, but I charitably assume they've followed the same path, Google Pixels have at least.

So to answer your question specifically for an iPhone, if you're using FaceID and get in a face-mangling accident, you type in your password until your face heal enough to stop changing and then set up FaceID again with your new mug.