Your Wi-Fi constantly sends the router fine signal details — in the clear. A stranger nearby can capture them and recognise individual people by their radio "fingerprint": through walls, with no camera, and nothing on you.
VEIL scrambles that fingerprint on every report with a secret twist only your own router can undo. An outside listener sees a different scramble each time and can't tie it to a person — their guess of "who's here" drops to pure chance.
It shapes only your own signal — it never jams, and your Wi-Fi speed stays ~98%. It stops outside snoops, not the router you connect to. Figures here are simulated (L0), pending real-hardware tests.