It sees you when you're sleeping, it knows when you're awake: WiFi can "see" you through walls

2015-12-10T13:18:00-05:00

Wi-Fi goes through walls, but it isn’t so great at getting through human bodies. Based in this piece of knowledge, a team at MIT’s Computer Science and Artificial Intelligence Lab (CSAIL) has built a detector that can see people through walls using Wi-Fi signals. It can recognize individuals and can even track the movement of their limbs with spooky accuracy.

If you've been trying to duck the information age by keeping a low online profile, not getting a smartphone, or even living off the grid, you are now officially out of luck: your body itself is a source of information thanks to its relative impenetrability by WiFi signals. Although it's a blow for any privacy advocates out there, the technology may have upsides, especially in the energy-savings arena: homes could automatically shut-off unneeded systems if no one was detected. Also, it could open up an entirely new (slightly creepy) area for architects: understanding how people interact with a space when they think no one is there.

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It sees you when you're sleeping, it knows when you're awake: WiFi can "see" you through walls