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Wednesday 15 November 2017 at 18:07
https://www.wired.com/story/10-year-old-face-id-unlocks-mothers-iphone-x/
It seems the Face ID system has some trouble telling family members apart, such as children and siblings if they look similar.
The suggestion to try to mitigate this issue is to either make sure to register your face in good l...
Source: http://pinside.com/pinball/forum/topic/iphone-can-be-unlocked-by-family-members-with-face-id#post-4074794