Researchers have developed SUAD, an inaudible attack that uses piezo transmitters on solid surfaces to inject ultrasonic voice commands into nearby devices, achieving a median success rate of over 89.8%. They also introduced a defense mechanism that emits inaudible perturbations from the device speaker to block such attacks while preserving normal voice assistant functionality. This development highlights the need for content creators and security teams to update their threat models and implement robust defenses against solid-channel inaudible voice attacks.
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Ali NematiWritten by Ali
