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.
This technology has been publicly demonstrated about 3 years ago, but I imagine it has been done years and years back. It’s really nothing mind blowing, just the way waves work, workaround believe it or not is the tin foil your walls.
There is now a free home assistant plugin to implement it at home lol. Crazy shit. Imagine what’s possible with classified tech.
https://github.com/francescopace/espectre
I’ve seen YouTube videos of people able to record the image of the the vibration of a potato chip bag through a window to recreate the audio from the room.
That’s pretty neat