Your Computer is Spying on You
By monitoring the flashes of LED lights on electronics equipment and the indirect glow from monitors, scientists in the United States and the United Kingdom have discovered ways to remotely eavesdrop on computer data.
Optical signals from the little flashing LED (light-emitting diode) lights, which are on everything from modems to keyboards, can be captured with a telescope and processed to reveal all the data passing through the device, according to Joe Loughry, a computer programmer at Lockheed Martin Space Systems.
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