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Okay, so a couple of days ago I realised that my friend can log into my phone, with his face, on MY face ID. How is this possible, shouldnât the face ID be secure so that only I can log into the phone? I think this actually is quite weird because of how safe you have said the face ID supposedly should be. What do I do?
iPhone 11
Security safeguards
Security is important to all of us to protect information on our devices. Apple Inc have done some important things to safeguard your information, the same way they did with Touch ID. Face ID uses the TrueDepth camera and machine learning for a secure authentication solution. Face ID data - including mathematical representations of your face - is encrypted and protected with a key available only to the Secure Enclave.
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. If you're concerned about this, they recommend using a passcode to authenticate.
If your friend had access to your device they may have set up an alternate ID to allow them to get into your phone. Check the Face ID settings and make sure an alternate identity isn't set up. Also, you may want to consider setting up Face ID again. If those things don't work then your best bet is to use a passcode instead.
My friend can log in to my Face ID
