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I have a twin and when we tried the Face ID demo with my face loaded in my brother could have it say 'face recognised'. This would be conveinent for me because

I have a twin and when we tried the Face ID demo with my face loaded in my brother could have it say 'face recognised'. This would be conveinent for me because since we both commute to work I have to queue up a playlist or read his messages / email. But, I believe this was a design compromise that was pointed out in the product launch event.

alkonaut 9y ago
If you have an identical twin you could have fooled a DNA test. I don't think it's a reasonable bar for an unlock-convenience to be more secure than that.
- mikeash 9y ago
  I agree, but to be fair, identical twins will be read as different people with a fingerprint scanner.