Towards Inferring Mechanical Lock Combinations Using Wrist-Wearables

Modern high security combination locks are digital, the rotation for each number is random. <a href="http:&#x2F;&#x2F;www.kaba-mas.com&#x2F;kaba-brand&#x2F;products&#x2F;906098&#x2F;x-10.html" rel="nofollow">http:&#x2F;&#x2F;www.kaba-mas.com&#x2F;kaba-brand&#x2F;products&#x2F;906098&#x2F;x-10.html</a><p>However the S&amp;G electromechanical is direct dial, so would be susceptible. <a href="http:&#x2F;&#x2F;www.sargentandgreenleaf.com&#x2F;products&#x2F;electronic-locks&#x2F;model-2740b&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.sargentandgreenleaf.com&#x2F;products&#x2F;electronic-locks...</a><p>However people usually open locks with their dominant hand, and wear their watch on their non-dominant hand, so it seems to be a small risk overall.

The paper is specifically about mechanical combination locks. Although fascinating in the sense of modern tech defeating old-school security, most people would encounter a combo lock these days only on gym and school lockers.<p>I&#x27;m more concerned about codes on keypads and passwords on keyboards being captured by cameras, either hidden spy cameras (like at ATMs) or ubiquitous security cameras that you don&#x27;t even notice anymore.<p>Cameras are a bigger threat and I haven&#x27;t seen any good novel ways to defend against that. Years ago there was an ATM pin pad that had changeable digits on each key. It shuffled the digits for each user, and you could read the digits only if you looked head on. But it didn&#x27;t catch on.

Who wears their watch on their right hand? That&#x27;s weird.<p>Cool demo, I guess.