Ordinary WiFi can now identify people with near perfect accuracy
Researchers in Germany have developed a method to identify individuals using ordinary WiFi signals with near-perfect accuracy. This technology analyzes how radio waves reflect off people's bodies, allowing for recognition even when devices are turned off. The implications for privacy and surveillance are significant, raising concerns about potential misuse in various contexts.
- ▪Scientists have demonstrated that standard WiFi routers can identify people by analyzing radio wave reflections.
- ▪The technology can recognize individuals without them carrying an active device, raising privacy concerns.
- ▪The method utilizes normal communication between WiFi routers and connected devices, making it accessible with existing hardware.
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Science News from research organizations Ordinary WiFi can now identify people with near perfect accuracy Scientists say ordinary WiFi routers may soon be able to secretly recognize and track people with near-perfect accuracy. Date: May 22, 2026 Source: Karlsruher Institut für Technologie (KIT) Summary: Scientists in Germany have demonstrated a startling new form of surveillance: identifying people using nothing more than ordinary WiFi signals. By analyzing how radio waves bounce around a room, researchers can effectively “see” and recognize individuals — even if they are not carrying a device and even if their phone is turned off.
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