Security News > 2022 > November > Using Wi-FI to See through Walls

The scientists tested the exploit by modifying an off-the-shelf drone to create a flying scanning device, the Wi-Peep.

The robotic aircraft sends several messages to each device as it flies around, establishing the positions of devices in each room.

A thief using the drone could find vulnerable areas in a home or office by checking for the absence of security cameras and other signs that a room is monitored or occupied.

It could also be used to follow a security guard, or even to help rival hotels spy on each other by gauging the number of rooms in use.

There have been attempts to exploit similar WiFi problems before, but the team says these typically require bulky and costly devices that would give away attempts.

An intruder could quickly scan a building without revealing their presence.

News URL

https://www.schneier.com/blog/archives/2022/11/using-wi-fi-to-see-through-walls.html