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I am also surprised. I will remove "flaw" word. But I think it is flaw. I already setup the face ID so it should not unlock with other user ideally. All you sa

I am also surprised. I will remove "flaw" word. But I think it is flaw. I already setup the face ID so it should not unlock with other user ideally. All you saying about ML is correct but it is big flaw itself.

Tomte 9y ago
If you don‘t want other people to unlock your phone, don‘t give them your passcode. Seriously. Consider the situation where this behaviour wouldn‘t exist. Your brother cannot login using FaceID, but he still can: with your passcode. There is simply no credible scenario where any of this might matter.
- viraptor 9y ago
  It's definitely a flaw with real scenarios. One example: Ending a relationship. You likely share the passcode in practice while in a relationship. After a breakup you may change it, but your ex-partner still has access because the iPhone learned their face. Another: Teen migrates from supervised access to the phone to private one. Not aware that parents still have access, even with changed code. I'm sure there are more cases if you think of people close to you that you don't trust completely.