https://www.techradar.com/news/oneplus-6-face-unlock-can-seemingly-be-fooled-by-a-photo

So far we’re yet to see a perfect face unlock system – even the one on the iPhone X can be fooled if you put enough work in, but it seems like the OnePlus 6’s might be easier to bypass than many.

In a video posted to Twitter, @rikvduijn shows the phone being unlocked by a cut out photo of his face, held in front of his friend’s face. Worse still, it apparently works even if the photo is black and white.