In the good old days, all keyboards had indicator LEDs that showed the on/off status of Caps Lock, Num Lock, and Scroll Lock. Nowadays they’re not so ubiquitous. My fancy-schmancy Logitech keyboard, ...

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The Caps Lock, Num Lock, and Scroll Lock LEDs on a keyboard can be used to exfiltrate data from a secure air-gapped system, academics from an Israeli university have proved. The attack, which they ...