After the face recognition function of the Galaxy S8 obviously did not meet the expectations of a biometric security system, the device still have two more: fingerprint sensor and iris scanner. And the latter should be particularly safe, if at all, if one goes to Samsung, one asks the uncertainty expert Jan Krissler aka Starbug, who could also reconstruct Ursula von Der Leyens fingerprint from a photo, then the iris scanner of the S8 can be quite simple The device recognizes if it is simply to be deceived with a photo of the eye, but if you place a contact lens in the photo, the device can be unlocked without any problem – the bending makes it. [Photo: cc by Stefan Maurer]