Scientists in Germany have demonstrated a startling new form of surveillance: identifying people using nothing more than ordinary WiFi signals. By analyzing how radio waves bounce around a room, researchers can effectively “see” and recognize individuals — even if they are not carrying a device and even if their phone is turned off.
There are many other types of routers, a large portion of them without any wireless. You only know household shiz. ALL routers have been banned. This is a huge problem industrywide.