Your home may contain a surveillance system you never deliberately installed. It has no lens. It doesn't need a microphone. It may already be sitting beside your television, on a shelf or attached to a wall. It is your Wi-Fi router. For years, Wi-Fi has been thought of as little more than invisible radio waves carrying websites, videos and messages between our devices. But researchers have increasingly demonstrated that those same radio signals can reveal surprisingly detailed information about what is happening around them. In some circumstances, Wi-Fi signals can be analysed to detect movement, estimate where people are located and even infer aspects of human behaviour. The unsettling part is that none of this requires a conventional camera. Your home is already full of radio waves A Wi-Fi router constantly communicates with phones, laptops, televisions, smart speakers and other connected devices. Radio waves travel through walls and objects, although they are affected by what th...
Follow the Clues. Challenge the Narrative.