When Apple released the iPhone X on November 3, it touched off an immediate race among hackers around the world to be the first to fool the company's futuristic new form of authentication. A week later, hackers on the actual other side of the world claim to have successfully duplicated someone's face to unlock his iPhone X—with what looks like a simpler technique than some security researchers believed possible.

On Friday, Vietnamese security firm Bkav released a blog post and video showing that—by all appearances—they'd cracked Face ID with a composite mask of 3-D-printed plastic, silicone, makeup, and simple paper cutouts, which in combination tricked an iPhone X into unlocking.