Ordinary WiFi can now identify people with near perfect accuracy

“Unlike earlier experimental systems that relied on expensive sensors or specialised equipment, the new method works with ordinary WiFi hardware already found in most homes and businesses. Previous approaches often depended on channel state information (CSI), which measures how radio signals change after bouncing off walls, furniture, and people. The new technique instead takes advantage of normal communication between WiFi routers and connected devices.” This a bit more problematic than previous such experiments, as not only is ordinary WiFi absolutely everywhere now, this also requires no special equipment nor even that the target is carrying device of any sort. Of course it does involve some AI to assist with the heavy lifting of raw data and identification, but it does certainly raise the stakes by another notch or two. In some countries this could be used to track citizens without their knowledge. See https://www.sciencedaily.com/releases/2026/05/260522023127.htm