AI is finding out when the person using your account isn't you

This means that instead of comparing whatever it sees in its front camera against still images of the user, the phone will make a sophisticated comparison that takes into account the shape of the user's face along with other features. The deep learning model powering Face ID can work under different lighting conditions and gradually becomes used to changes that the user's face undergoes over time, such as changing a hairstyle, growing a beard or wearing a scarf or hat. It will also be able to detect if a user is awake and aware and prevent unintended unlocking of the phone.