Malware Lets a Drone Steal Data by Watching a Computer’s Blinking LED

A FEW HOURS after dark one evening earlier this month, a small quadcopter drone lifted off from the parking lot of Ben-Gurion University in Beersheba, Israel. It soon trained its built-in camera on its target, a desktop computer’s tiny blinking light inside a third-floor office nearby. However, LED was silently winking out an optical stream of the computer’s secrets to the camera floating outside.

An air gap, in computer security, is sometimes seen as an impenetrable defense. Hackers can’t compromise a computer that’s not connected to the internet or other internet-connected machines, the logic goes. But malware like Stuxnet and the Agent.



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