Wi-Fi as an invisible camera: recognizing people through radio waves

Glowing orange Wi-Fi logo on a dark background — the technology enabling Karlsruhe scientists to recognize people via ordinary Wi-Fi with nearly 100% accuracy

The orange Wi-Fi symbol glowing on dark glass has become the key to a breakthrough technology. Scientists at Karlsruhe have learned to turn ordinary radio waves into an invisible camera that recognizes people with nearly 100% accuracy. This discovery could reshape our understanding of privacy and security in smart homes.

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