With the advent of 3-D printing security gets even more challenging. Bump keys are not new but the new technology makes it possible to create those with just a picture of the keyhole say security consultants.
As a result, all anyone needs to open many locks previously considered “unbumpable”is a bit of software, a picture of the lock’s keyhole, and the keyhole’s depth, says Weyers,
Read more:http://www.wired.com/2014/08/3d-printed-bump-keys/