Your body can be fingerprinted and tracked by Wi

As if you didn’t have enough to worry about when it comes to surveillance, researchers have discovered a new way to identify and track people using Wi-Fi signals—and I’m not talking about anything relating to your electronic devices. This tech can identify a specific, individual person, and track them in a physical space and across locations, based on how their body interacts with Wi-Fi signals.

“WhoFi,” a system developed by researchers at La Sapienza University of Rome , makes me think of that one “sonar” scene from The Dark Knight . And to be sure, tracking the way wireless electronic signals interact with the physical world isn’t anything new— almost a decade ago they figured out how to make a 3D map of a building using Wi-Fi. But this new system can “fingerprint” individual p