https://www.theregister.co.uk/2017/11/13/iphone_x_face_id/

Video Apple's facial-recognition login system in its rather expensive iPhone X can be, it is claimed, fooled by a 3D printed mask, a couple of photos, and a blob of silicone.

Bkav Corporation, an tech security biz with offices in the US and Singapore, specializes in bypassing facial-recognition systems, and set out to do the same with Face ID when it got hold of a $999 iPhone X earlier this month. The team took less than a week to apparently crack Cupertino's vaunted new security mechanism, demonstrating that miscreants can potentially unlock a phone with a mask of the owner's face.