How your screen's brightness could be leaking data from your air-gapped computer
It may not be the most efficient way to steal data from an organisation, let alone the most practical, but researchers at Ben-Gurion University in Israel have once again detailed an imaginative way to exfiltrate information from an air-gapped computer. And this time they haven’t done it by listening to a PC’s fan, or watching the blinking LED lights on a hard drive or even picking up FM radio waves.