抄録
Offer Organization: Japan Society for the Promotion of Science, System Name: Grants-in-Aid for Scientific Research Grant-in-Aid for Early-Career Scientists, Category: Grant-in-Aid for Early-Career Scientists, Fund Type: -, Overall Grant Amount: - (direct: 3200000, indirect: 960000)
We discovered a new attack that injects arbitrary audio signals to a target microphone by aiming an amplitude-modulated light at the microphone’s aperture, and proposed a command injection attack on voice-controllable systems such as smartphones and smart speakers. We evaluated several products showing that we can achieve a successful injection from more than 100 meters using laser power similar to ordinary laser pointers. The paper is accepted at USENIX Security 2020, which is one of the most prestigious conference in the computer-security research field. We made responsible disclosure and collaborated with the vendors for mitigating the vulnerability.