There were a few other authentication attacks that I found interesting, but this takes the cake. I remember reading about how someone broke touch ID by lifting a fingerprint off the screen, and how face ID could be broken using a 3d printed mask. Face ID seems especially vulnerable as you are literally wearing your password on your face. Picking up someones pin based on accelerator data is clever and interesting to say the least, as it opens up new attack vectors on ATMs and PoS systems. - Resteemed