A professor of mine once gave a pretty compelling argument for why we are still a long way from using pictures in ATM security.<p>Imagine you have an ATM account, you fall down and cut your face, maybe break your nose.<p>Now you need to withdraw money for some reason. You are locked out. Now lets also say that you know someone high up that made the decision to buy these ATM machines. You tell them that you are locked out, and he's going to start wondering why he put these new machines in place.<p>We'll probably get there eventually, but I think we are far from that point right now.