Humans can be tracked with unique 'fingerprint' based on how their bodies block Wi-Fi signals Wi-Fi spy with my little eye that same guy I saw at another hotspot
Researchers in Italy have developed a way to create a biometric identifier for people based on the way the human body interferes with Wi-Fi signal propagation.
The scientists claim this identifier, a pattern derived from Wi-Fi Channel State Information, can re-identify a person in other locations most of the time when a Wi-Fi signal can be measured. Observers could therefore track a person as they pass through signals sent by different Wi-Fi networks – even if they’re not carrying a phone.
if you thought that you can sneak into your colleague's bedroom to stand by the bed while they sleep then deny the whole stuff arguing your phone was always at your home, then beware
i already worked out a way to trick the system by distorting your silhouette though:
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