Unless you live on a private island with no cameras, your face has been scanned many times. At airports, malls, schools, stores, gas stations, restaurants, sporting events, intersections... There are cameras everywhere. If you're so paranoid about Apple or someone else having a scan of your face you should probably wear a mask every time you are in public. Never post pictures of yourself online. Never let anyone take your picture, ever. If you're not willing to do those things, you're fooling yourself in thinking that a phone is going to be the culprit in letting "big brother" identify who you are.