keys

dormakaba Saflok locks — used on around three million doors across 13,000 hotels — are vulnerable to an attack that involves forging electronic keycards.

Keys make a clicking sound when inserted in door locks. Scientists have found a way to duplicate a key using a recording of the sound.

At the Chaos Communication Congress a university professor tells how to forge keys using a 3D printer and we come up with a few tips how to protect yourself from that.