Stefan Mileschin

WiFi's friendliness to other devices might pose a significant threat in the wrong circumstances. University of Waterloo researchers have discovered a security flaw in the networking standard that lets attackers track devices through walls. The technique identifies the location of a device within 3.3ft just by exploiting WiFi devices' automatic contact responses (even on password-protected networks) and measuring the response times. You can identify all the connected hardware in a room, and even track people's movements if they have a phone or smartwatch.

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