Your home or neighbourhood WiFi router may soon double as a highly accurate surveillance tool.
Researchers have revealed a security loophole where hackers or governments can hijack wireless signals to identify and track people without their permission, even if their phones are turned off.
The study, conducted by cybersecurity experts at the Karlsruher Institut für Technologie (KIT), reveals that standard wireless infrastructure can actually ‘see’ human bodies.
They discovered that by using artificial intelligence to analyze how radio waves bounce off human bodies, the system can profile and recognize individuals in a room with near 100 per cent accuracy in just a few seconds.
Unlike previous tracking methods that required specialized sensors, the new technique works entirely on the everyday routers already installed in homes, offices and even malls.
