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Cyber Security

Attackers Can Use Sonic and Ultrasonic Signals to Crash Hard Drives

Researchers from Michigan and Zhejiang University have demonstrated how sonic and ultrasonic signals can be used to cause physical damage to hard drives just by playing ultrasonic sounds through a target computer’s own built-in speaker or by exploiting a speaker near the targeted device. Sound interferences that lasted for 105 seconds or more caused the stock Western Digital HD in the video-surveillance device to stop recording from the beginning of the vibration until the device was restarted. The team proposed some defenses that can be deployed as a firmware update to attenuate the intentional acoustic interference, including a sensor fusion method to prevent unnecessary head parking by detecting ultrasonic triggering of the shock sensor.

Source: https://thehackernews.com/2018/05/hard-drive-failure-hack.html

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