Recent technological developments in artificial intelligence and Signal Intelligence (SDR) allow hackers to 'see' through walls using Wi-Fi signals to track the location and movement of individuals.
By analyzing how Wi-Fi signals bounce back after encountering objects, it's possible to detect the presence, movement, and shape of individuals behind walls.
The process involves using standard Wi-Fi routers, Software-Defined Radios (SDRs), multiple antennas, and AI algorithms to collect and process Channel State Information (CSI) data to reconstruct human poses.
Wi-Fi sensing has real-world applications in security, elder care, smart homes, law enforcement, and intelligence agencies, but raises major privacy and legality concerns.