Researchers showed that attackers can make some headphones and other analog devices leak audio or control signals that can then be captured from nearby, even through walls. The USENIX Security 2026 paper calls the technique InjectEave: an electromagnetic injection attack that targets non-linear analog components such as amplifiers and analog-to-digital converters. Tested devices included Sony, HP, Philips, Apple, Xiaomi, UGreen, Flyingvoice, OIDIRE and JINGZAO products, with intelligible headphone audio recovered from as far as 30 meters in the best case.
Why it matters: This is not a lab-only theory: it was demonstrated on real commercial devices using commodity radio equipment, creating espionage and privacy risks for people using headphones, VoIP handsets, and some smart-home products. Affected users and device makers should treat wired and wireless analog audio paths as potential leakage points and watch for vendor mitigations or hardware guidance.
2026.09.17
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This article appears to be the first broadly reported coverage of the specific InjectEave side-channel eavesdropping research and its demonstrations against named commercial devices.
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