BAS Message
February 2021

The sound of a key sliding into a lock could be enough information to potentially create a copy of that key and open the lock – that's the conclusion of researchers who've been investigating "acoustics-based physical key inference".

It makes sense, if you think about it: the clicks and clacks of a key pushed into a pin tumbler lock actually reveal the mechanism within, if you can slow down, isolate, and analyse the sounds with enough accuracy.

Pulling off a trick like this would need a lot of work and equipment, and would probably end up being more hassle than learning how to pick the lock in the traditional way - but it's an intriguing and unusual security loophole to ponder.

www.sciencealert.com/researchers-can-break-locks-just-from-the-sound-of-a-key-being-inserted


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updated 2/11/21