https://qz.com/1073209/what-is-apples-new-faceid-and-why-is-it-replacing-the-fingerprint/

We’re entering a new age of digital security: Either you use a password, or you are the password.

Apple has killed its TouchID fingerprint scanner in favor of a 3D facial scanning technology called FaceID, which the company says can unlock your phone by scanning your face and provides better security than a fingerprint. Apple claims that 1 in 50,000 people are able to unlock an iPhone by having a similar fingerprint, but only 1 in 1,000,000 would have a face similar enough to trick the new system.