Face lock
Me and my brother both are able to unlock Iphone 11 face lock while the registered Face ID is mine and it happens many times Or every time when he take my phone. We look like same but not twins but how is this possible ?
iPhone 11, iOS 13
https://support.apple.com/en-us/HT208108
The probability that a random person in the population could look at your iPhone or iPad Pro and unlock it using Face ID is approximately 1 in 1,000,000 with a single enrolled appearance. As an additional protection, Face ID allows only five unsuccessful match attempts before a passcode is required. The statistical probability is different for twins and siblings that look like you and among children under the age of 13, because their distinct facial features may not have fully developed.