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378 Ordinary WiFi can now identify people with near perfect accuracy

ScienceDaily
ScienceDaily · 05/22/2026 23:03 EDT

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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