Thanks to the beamforming that's central to modern Wi-Fi and 5G cellular standards they can even see through your walls using the backscattered energy of the st

Thanks to the beamforming that's central to modern Wi-Fi and 5G cellular standards they can even see through your walls using the backscattered energy of the steered beam, like an airport security scanner for the entire planet: https://arxiv.org/pdf/2301.00250.pdf https://arxiv.org/pdf/2301.00250.pdf https://people.csail.mit.edu/fadel/papers/wivi-paper.pdf https://people.csail.mit.edu/fadel/papers/wivi-paper.pdf