Research demonstrates that commercial WiFi devices can be repurposed to eavesdrop on keystrokes by analyzing signal reflections and interference patterns caused by finger movements near a keyboard. The study presents a practical side-channel attack that requires no additional hardware beyond standard WiFi routers or adapters.
Background
WiFi-based sensing and side-channel attacks have emerged as a growing privacy concern, with prior work showing that WiFi signals can detect breathing, falling, and voice recognition. This paper extends that line of research to keyboard eavesdropping using off-the-shelf WiFi hardware.
- Source
- Lobsters
- Published
- Nov 2, 2026 at 10:43 PM
- Score
- 7.0 / 10