CTRL-ALT-LED technique can exfiltrate data from air-gapped systems using Caps Lock, Num Lock, and Scroll Lock LEDs.
Article Link: https://www.zdnet.com/article/academics-steal-data-from-air-gapped-systems-via-a-keyboards-leds/#ftag=RSSbaffb68
CTRL-ALT-LED technique can exfiltrate data from air-gapped systems using Caps Lock, Num Lock, and Scroll Lock LEDs.
Article Link: https://www.zdnet.com/article/academics-steal-data-from-air-gapped-systems-via-a-keyboards-leds/#ftag=RSSbaffb68