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But Wolf says she never saw the light on her laptop go on.As a result, she had no idea she was under surveillance. While controlling a camera remotely has long been a source of concern to privacy advocates, conventional wisdom said there was at least no way to deactivate the warning light. Marcus Thomas, former assistant director of the FBI’s Operational Technology Division in Quantico, said in a recent story in The Washington Post that the FBI has been able to covertly activate a computer’s camera — without triggering the light that lets users know it is recording — for several years.

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RATted out The software used by Abrahams in the Wolf case is known as a Remote Administration Tool, or RAT.

Students reported seeing a ‘creepy’ green flicker that indicated that the camera was in use.

That helped to alert students to the issue, eventually leading to a lawsuit.

But researchers figured out how to reprogram the chip inside the camera, known as a micro-controller, to defeat this security feature.

In a paper called “i See You: Disabling the Mac Book Webcam Indicator LED,” Brocker and Checkoway describe how to reprogram the i Sight camera’s micro-controller to allow the camera and light to be activated independently.

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