ultrasound hacking

Ultrasound hacking refers to techniques that use inaudible ultrasonic waves to exfiltrate data from air-gapped computers or to communicate between devices without traditional network connections. On WindowsForum.com, discussions cover research like SmartAttack from Ben-Gurion University, which demonstrates how smartwatches can use ultrasound to bridge air gaps and steal data from secure systems. These attacks exploit the fact that microphones and speakers in modern devices can transmit and receive ultrasonic frequencies, bypassing physical isolation. Topics include the security implications for enterprise IT, defense contractors, and critical infrastructure, as well as potential countermeasures such as acoustic filters and policy changes. The tag highlights emerging threats to air-gapped security and the evolving landscape of covert data exfiltration methods.