In this eye-opening video, cybersecurity creator Cyb3rMaddy explores the rapidly advancing world of Wi-Fi sensing—a technology that turns ordinary routers into motion detectors, gesture trackers, and even vital-sign monitors using nothing but radio waves. She demonstrates it live with a cheap ESP32 board that can detect presence, heart rate, breathing, and multiple people in a room, explains the new 802.11bf standard making this mainstream, and highlights chilling real-world uses like hotel room surveillance, hospital monitoring, and border security. While it offers convenient applications, the video warns of unregulated, camera-free surveillance creeping into everyday life and the growing privacy nightmare it creates.
