engleski

On location privacy vulnerabilities in WiFi networks

Location privacy concerns have been further increased by today’s omnipresence of WiFi technology. One such interesting source of private location data is the users Prefered Network List (PNL), as the device stores the list of previously used hotspots. Collecting such data is done by monitoring WiFi traffic, however nowadays more and more devices no longer transmit their PNL in clear, thus not allowing for an easy setup for the attacker. In this work, we will discuss the implications of revealing ones PNL obtained by passive attacks, as well as an active attack we have devised, thus circumventing the protection implemented by user equipment manufacturers.

WiFi, PNL, Probe request, SSID

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