Researchers at La Sapienza University of Rome have developed “WhoFi,” a system that can identify and track individuals using Wi-Fi signals bouncing off their bodies with 95.5% accuracy.

WhoFi

Researchers at La Sapienza University of Rome have developed "WhoFi," a system that can identify and track individuals using Wi-Fi signals bouncing off their bodies with 95.5% accuracy.

Unlike previous attempts that achieved only 75% accuracy, this neural network-powered… pic.twitter.com/x3V58sWwr3

— Brian Roemmele (@BrianRoemmele) July 28, 2025