Researchers discover security loophole allowing attackers to use Wi-Fi to see through walls

Overview of Wi-Peep. Credit: Proceedings of the 28th Annual International Conference on Mobile Computing And Networking (2022). DOI: 10.1145/3495243.3560530

A research team based out of the University of Waterloo has developed a drone-powered device that can use Wi-Fi networks to see through walls.

The device, nicknamed Wi-Peep, can fly near a building and then use the inhabitants’ Wi-Fi network to identify and locate all Wi-Fi-enabled devices inside in a matter of seconds.
The Wi-Peep exploits a loophole the researchers call polite Wi-Fi. Even if a network is password protected, smart devices will automatically respond to contact attempts from any device within range. …
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