Humans can be tracked with unique 'fingerprint' based on how their bodies block Wi-Fi signals

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www.theregister.com/2025/07/22/whofi_wifi_ident…

The Sapienza computer scientists say Wi-Fi signals offer superior surveillance potential compared to cameras because they're not affected by light conditions, can penetrate walls and other obstacles, and they're more privacy-preserving than visual images.

[…] The Rome-based researchers who proposed WhoFi claim their technique makes accurate matches on the public NTU-Fi dataset up to 95.5 percent of the time when the deep neural network uses the transformer encoding architecture.

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How is that a "fingerprint"?

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Well they can identify you are the same person but not your identity.. So it's like a disenbodied fingerprint.

I suppose they could potentially make some database and train an AI on it someday to match to actual identities, but usefulness would be pretty limited at only 95% accuracy. That's a false reading 1/20 times, so I suspect it would fail bigly to accurately recognize people from large data sets.

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That's a false reading 1/20 times

And when has something like that ever stopped anyone?

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Well okay you're not wrong, there is always some sucker out there.

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