What if a hacker could guess your passwords from the heat you leave behind on your keyboard? A group of computer security researchers at the University of Glasgow's School of Computing Science in the UK succeeded in deploying such an attack.
In a paper to be published in the upcoming issue of the ACM Transactions on Privacy and Security journal, a team led by associate professor Mohamed Khamis developed ThermoSecure, a system using a thermal imaging camera to guess and identify the keys that were last touched by an individual – the brighter the area appears in the thermal image, the more recently it was touched.
The researchers then used this system to guess passwords and PINs on computer keyboards, smartphone screens and ATM keypads.
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