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SecurityQuiet 25h · day 4

Researchers reveal InjectEave: eavesdropping on headphones from 30 meters via radio signals

Hong Kong researchers demonstrate a technique that uses electromagnetic injection to extract audio from consumer devices, bypassing encryption.

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What to know

  • Researchers developed InjectEave, a radio-based electromagnetic injection technique that extracts audio from headphones and smart devices from up to 30 meters away, including through walls.
  • The attack bypasses digital encryption by targeting analog hardware components (amplifiers, converters) before audio signals are encrypted, making it a hardware-level vulnerability rather than a software one.
  • Testing confirmed the vulnerability affects commercial products from Sony, Apple, HP, Philips, Xiaomi and others; the attack requires nearby radio equipment and knowledge of the target device's RF response but no direct physical access.

Yan Long Assistant professor at HKUST in GuangzhouHong Kong University of Science and Technology in Guangzhou Research institutionHong Kong Polytechnic University Research institution

Researchers reveal InjectEave: eavesdropping on headphones from 30 meters via radio signals
techspot.com

How it unfolded 2 developments, newest first · click a bar or a number to jump articlesposts

Peak 1 piece in one hour at Sep 19, 3 PM; 4 pieces over 4 days (1 article · 2 posts · 1 comment) Sep 19, 3 PM — 1 piece · 1 article — Google News 1Sep 19, 4 PM — quietSep 19, 5 PM — quietSep 19, 6 PM — quietSep 19, 7 PM — quietSep 19, 8 PM — quietSep 19, 9 PM — quietSep 19, 10 PM — quietSep 19, 11 PM — quietSep 20, 12 AM — quietSep 20, 1 AM — quietSep 20, 2 AM — quietSep 20, 3 AM — quietSep 20, 4 AM — quietSep 20, 5 AM — quietSep 20, 6 AM — quietSep 20, 7 AM — quietSep 20, 8 AM — quietSep 20, 9 AM — quietSep 20, 10 AM — quietSep 20, 11 AM — quietSep 20, 12 PM — quietSep 20, 1 PM — quietSep 20, 2 PM — quietSep 20, 3 PM — quietSep 20, 4 PM — quietSep 20, 5 PM — quietSep 20, 6 PM — quietSep 20, 7 PM — quietSep 20, 8 PM — quietSep 20, 9 PM — quietSep 20, 10 PM — quietSep 20, 11 PM — quietSep 21, 12 AM — quietSep 21, 1 AM — quietSep 21, 2 AM — quietSep 21, 3 AM — quietSep 21, 4 AM — quietSep 21, 5 AM — quietSep 21, 6 AM — quietSep 21, 7 AM — quietSep 21, 8 AM — quietSep 21, 9 AM — quietSep 21, 10 AM — quietSep 21, 11 AM — quietSep 21, 12 PM — quietSep 21, 1 PM — quietSep 21, 2 PM — quietSep 21, 3 PM — quietSep 21, 4 PM — quietSep 21, 5 PM — quietSep 21, 6 PM — quietSep 21, 7 PM — quietSep 21, 8 PM — quietSep 21, 9 PM — quietSep 21, 10 PM — quietSep 21, 11 PM — quietSep 22, 12 AM — quietSep 22, 1 AM — quietSep 22, 2 AM — quietSep 22, 3 AM — quietSep 22, 4 AM — quietSep 22, 5 AM — quietSep 22, 6 AM — quietSep 22, 7 AM — quietSep 22, 8 AM — 1 piece · 1 post — Reddit 1Sep 22, 9 AM — 1 piece · 1 post — Mastodon 1Sep 22, 10 AM — quietSep 22, 11 AM — quietSep 22, 12 PM — quietSep 22, 1 PM — quietSep 22, 2 PM — quietSep 22, 3 PM — quietSep 22, 4 PM — quietSep 22, 5 PM — quietSep 22, 6 PM — quietSep 22, 7 PM — quietSep 22, 8 PM — quietSep 22, 9 PM — quietSep 22, 10 PM — quietSep 22, 11 PM — 1 piece · 1 comment — Reddit 1Yesterday, 12 AM — quietYesterday, 1 AM — quietYesterday, 2 AM — quietYesterday, 3 AM — quietYesterday, 4 AM — quietYesterday, 5 AM — quietYesterday, 6 AM — quietYesterday, 7 AM — quietYesterday, 8 AM — quietYesterday, 9 AM — quietYesterday, 10 AM — quietYesterday, 11 AM — quietYesterday, 12 PM — quietYesterday, 1 PM — quietYesterday, 2 PM — quietYesterday, 3 PM — quietYesterday, 4 PM — quietYesterday, 5 PM — quietYesterday, 6 PM — quietYesterday, 7 PM — quietYesterday, 8 PM — quietYesterday, 9 PM — quietYesterday, 10 PM — quietYesterday, 11 PM — quietToday, 12 AM — quiet 12
Sep 20Sep 21Sep 22yesterdaynow · 1:57 AM ET
  1. 2

    Research details show vulnerability affects 11 commercial products

    Testing demonstrated the InjectEave attack works on headphones from Sony, Apple, UGreen, Philips, and HP, as well as smart devices from Xiaomi and other manufacturers. Without an RF amplifier, most devices were vulnerable from distances greater than two meters, including through walls. With amplification, the researchers recovered intelligible audio from up to 30 meters away.

    “Our new project, InjectEave, shows that RF signals can induce information leakage from everyday headphones, allowing an attacker to recover headphone audio from up to 30 meters away, including through walls…”
    — Yan Long, Assistant professor at HKUST in Guangzhou · source

    • The Shrek soundtrack has been appropriated by a group the government considers "terrorists". Tens of citizens have been arrested and held without bail, pending investigation, which takes approximately a year. Someone's knocking at your door...

      undrwaterr/technology1d agoview on r/technology ↗
  2. 2 days quiet
  3. 1

    Researchers present InjectEave technique at USENIX Security 2026

    Researchers from Hong Kong University of Science and Technology in Guangzhou and Hong Kong Polytechnic University presented their paper on InjectEave, a technique that uses electromagnetic injection to induce information leakage from everyday devices including headphones, phones, and smart-home equipment.