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Proceedings 2021 Network and Distributed System Security Symposium
DolphinAttacks (i.e., inaudible voice commands) modulate audible voices over ultrasounds to inject malicious commands silently into voice assistants and manipulate controlled systems (e.g., doors or smart speakers). Eliminating DolphinAttacks is challenging if ever possible since it requires to modify the microphone hardware. In this paper, we design EarArray, a lightweight method that can not only detect such attacks but also identify the direction of attackers without requiring any extradoi:10.14722/ndss.2021.24551 fatcat:ozckqbv7mzebvfyse32qliyvdq