Hackers Send Silent Commands to Speech Recognition Systems with Ultrasound






Hackers Send Silent Commands to Speech Recognition Systems with Ultrasound


September 8th, 2017

Via: Tech Crunch:

Security researchers in China have invented a clever way of activating voice recognition systems without speaking a word. By using high frequencies inaudible to humans but which register on electronic microphones, they were able to issue commands to every major “intelligent assistant� that were silent to every listener but the target device.















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