My sister can unlock my phone ID with her face
My sister can unlock my phone using her face? Why does it happen? Although my phone only has my face ID in the phone and I did reset it many time but she still can open it with her face?
There are a few things to consider:
Does your sister know your passcode? If so, change it and don’t share.
Was your sister present when you established Face ID? If so, setup Face ID, with no one else in the room.
Were you present in the room when your sister opened the phone? If so, don’t do that.