https://techcrunch.com/2017/11/13/apple-face-id-bkav-hack/

Touted as the iPhone X’s new flagship form of device security, Face ID is a natural target for hackers. Just a week after the device’s release, Vietnamese research team Bkav claims to have cracked Apple’s facial recognition system using a replica face mask that combines printed 2D images with three-dimensional features. The group has published a video demonstrating its proof of concept, but enough questions remain that no one really knows how legitimate this purported hack is.

As shown in the video below, Bkav claims to have pulled this off using a consumer-level 3D printer, a hand-sculpted nose, normal 2D printing and a custom skin surface designed to trick the system, all for a total cost of US$150.