Forget X-rays, now you can see through walls using WI-FI: Device captures silhouettes and can even identify people when they’re stood behind CONCRETE

Using a wireless transmitter fitted behind a wall, computer scientists have developed a device that can map a nearby room in 3D while scanning for human bodies. Using the signals that reflect off these people, the device creates an accurate silhouette (pictured) and can even use this silhouette to identify who that person is.