At a recent conference, he also spoke about the weakness of eye scanners as a means of identity verification, due to the proliferation of increasingly high resolution cameras that could conceivably be used as “corneal keyloggers” – take a photo of someone’s eye and get access to all their stuff.
In 2013, Krissler gained attention in the hacker community for bypassing Apple’s smartphone fingerprint scanner using a dummy thumbprint created from wood glue and sprayable graphene. While many hold out hope that biometrics might someday replace passwords as a means of identity verification, Krissler demonstrates that a strong password derives security from its secrecy in a way that many biometric measures cannot match.