[mjevans]

The problem with that is the ease with which anyone can compare their input to the 'key'; externally.

You could very quickly rule out 95% of the field with little effort, and people already do things like say "you look so much like X": we have a short list of collisions already.

[katastic]

Exactly. I'm more worried about if someone can make a mask of someone's face (or even a print out) and get it to work.

But at least it's not like people have pictures of their faces plastered across every social network...

... crap.

[gnicholas]

As others have said, those who have tried masks haven't worked. But I wonder if normal masks have different heat signatures than real faces, which an IR array can detect. It's possible that something as simple as standard mask + heat would fool the system. Hopefully not!

[zwily]

Wired gave it a pretty good go: https://www.wired.com/story/tried-to-beat-face-id-and-failed...

[mikeash]

Apple specifically mentioned testing with high-end masks, and there have been videos made about people attempting it. It doesn’t work.