Our WiFi spies on us even if we don't have our mobile phone with us.

A German research team has developed a technology that can identify individuals passively through WiFi signal patterns, even without them carrying WiFi-enabled devices. This method utilizes existing WiFi networks and analyzes how radio waves interact with people to create unique, identifiable patterns. The researchers warn that this capability poses a significant threat to personal privacy and turns routers into potential surveillance tools. Experts emphasize the urgent need for stronger privacy protections, as disabling personal devices does not prevent identification. This technology creates an invisible surveillance infrastructure, raising concerns about potential misuse by authorities or cybercriminals.