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Researchers have demonstrated that they can discern individual letters on a display based only on the ultrasonic whine it emits. https://media.wired.com/photos/5b7e05f05560bb1fedf11d59/master/pass/Researchers%20figure%20out%20what’s%20on%20a%20computer%20screen%20from%20sound%20v2.jpg
(credit: Microsoft) Attackers can cause potentially harmful hard drive and operating system crashes by playing sounds over low-cost speakers embedded in computers or sold in stores, a team of researchers demonstrated last week. The attacks use sonic and ultrasonic sounds to disrupt magnetic HDDs as they read or write data. The researchers showed how the […]
Inaudible signals that your phone can hear—but you can’t—are often based on ad hoc tech, which makes for risky security. https://media.wired.com/photos/5ad60edcba6e7704a00d78f3/master/pass/ultrasonic_tone_spying-TA.jpg
Hackers can take control of smart devices using ultrasonic frequencies the human ear cannot detect, according to a new study. Tablets, phones or even in-car interfaces with major voice recognition platforms are all at risk. Researchers at Zhejiang University published a white paper last Thursday detailing how they were able to attack devices like phones, […]
