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.
What’s stopping someone from just deploying their own wifi networks around, similar to flock cameras?
Presumably, the room itself. This isn’t about the router so much as the shape of the room and the way the waves move through the room in terms of data.