AIR-FI: Generating Covert WiFi Signals from Air-Gapped Computers

""AIR-FI: Generating Covert WiFi Signals from Air-Gapped Computers," Guri shows that perfectly timed read-write operations to a computer's RAM card can make the card's memory bus emit electromagnetic waves consistent with a weak Wi-Fi signal.

This signal can then be picked up by anything with a Wi-Fi antenna in the proximity of an air-gapped system, such as smartphones, laptops, IoT devices, smart watches*, and more." - https://www.zdnet.com/article/academics-turn-ram-into-wifi-cards-to-steal-data-from-air-gapped-systems/

Demo: https://www.youtube.com/watch?v=vhNnc0ln63c Paper: https://arxiv.org/pdf/2012.06884.pdf

*misspelled due to lemmy's slur filter facepalm