Inaudible ultrasound attack can stealthily control your phone, smart speaker

American university researchers have developed a novel attack which they named "Near-Ultrasound Inaudible Trojan" (NUIT) that can launch silent attacks against devices powered by voice assistants, like smartphones, smart speakers, and other IoTs. [...]

american attack attacks control devices near novel nuit phone researchers security silent smart smartphones smart speaker speakers trojan ultrasound university voice