TrojPix Attack Exfiltrates Data from Air-Gapped PCs via Video Cable Emissions

Researchers at Shandong University developed TrojPix, a technique that leaks data from air-gapped computers by modulating on-screen pixels to emit radio signals via video cables. The method requires prior malware installation and works at distances up to several meters. It achieves data rates of up to 100 bits per second, enabling theft of encryption keys and passwords.