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Relatedly, one of my favorite recent papers is "Surveilling the Masses with Wi-Fi-Based Positioning System" [1]. In the paper, they (ab)use the fact that smartphones report the location of WiFi access points to public databases in order to track human migration over several large scale events (from natural disasters to the invasion of Ukraine).

[1] https://arxiv.org/pdf/2405.14975

That sounds like a super fun demo to do live! I have seen people om social media post their funny ssids around their house…please do not.

Wow, the map gives a good insight of where "technological humans" are concentrated.

or where people are actually recording wifi networksk, wigle is kept up to date by volunteers

Complete dead zone in my area, even though the wifi SSIDs are saturated.