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hackkeyboardTwo researchers working at security firm Inverse Path, recently came out with a paper that reveals a disturbing discovery about many common keyboards. It turns out that the poor shielding used on many keyboard’s PS/2 cables can allow hackers to snoop on what you’ve been typing. When a key is pressed, the data leaks onto the earth wire that connects to the PC’s power unit, which in turns connects to the plug in the power socket. From there, the data potentially leaks out onto the power circuit that is supplying electricity in a room.

“The PS/2 signal square wave is preserved with good quality… and can be decoded back to the original keystroke information,” wrote the pair in a paper describing their work.

The folks over at Inverse Path have even been able to demonstrate this working over distances up to 15 meters.

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