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A new tool for your laptop could help fend off eavesdroppers

Researchers from the National University of Singapore and Yonsei University in the Republic of Korea have invented a device that can detect whether: malware uses a laptop microphone without permission.

The prototype device, codenamed TickTock, described in a paper (opens in new tab) Titled ‘TickTock: Detecting Microphone Status in Laptops Using Electromagnetic Leakage from Clock Signals’, it is so named because of the way it monitors the electromagnetic (EM) leakage of a laptop microphone’s clock signals.