> These signals, known as beamforming feedback information (BFI), are transmitted without encryption, meaning that anyone within range can potentially read them

> These signals, known as beamforming feedback information (BFI), are transmitted without encryption, meaning that anyone within range can potentially read them. > By analyzing that information, the system can generate images of people from multiple viewpoints. Those images can then be used to determine a person's identity. This is the extent of the description of the magic sauce. Why are those images so unique that you can’t trick the algorithm? I can’t think of any EM based identification that can’t be tricked by adding layers of reflectors or absorbers in various points - a mask, special paint, etc.