Humans can be tracked with unique 'fingerprint' based on how their bodies block Wi-Fi signals by Thomas Claburn from The Register on 2025-07-22 15:29 (#6YTBT) 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....
