EveGuard: Defeating Vibration-based Side-Channel Eavesdropping with Audio Adversarial Perturbations
Jung-Woo Chang, Ke Sun, David Xia, Xinyu Zhang, Farinaz Koushanfar
IEEE Symposium on Security and Privacy 2025 · Day 3 · Audio and Video Security
In an increasingly voice-interface driven world, the omnipresence of speakers in devices like smartphones, smart home assistants, vehicles, and public infrastructure presents a significant yet often overlooked security vulnerability: **vibration-based side-channel eavesdropping**. The talk "EveGuard: Defeating Vibration-based Side-Channel Eavesdropping with Audio Adversarial Perturbations," presented by Jung-Woo Chang from UC San Diego and collaborators, introduces a novel software-only defense mechanism designed to protect human speech from unauthorized capture by exploiting the inherent differences between human auditory perception and how IoT sensors interpret sound. This research addresses a critical privacy and security concern, as malicious actors can leverage built-in device sensors to reconstruct spoken content, often without requiring direct access to microphones.