Justin Williams
Justin is an experienced security professional, a WiFi enthusiast and open-source intelligence dabbler, with years of hands-on experience using WiGLE and related platforms. Having mapped millions of WiFi access points globally, Justin searches for creative applications of public data for real-world insights. This work bridges technical experimentation and practical analysis, with a focus on privacy, security, and the social implications of ubiquitous wireless networks. Justin moonlights at Group CISO for MTN.
Session
Alternate longer title : Geo-locating WiFi data as a Proxy for Human Population Distribution (or Vibe coding with Google, Apple WLS and Wigle)
This talk explores the geo-location of WiFi access point data - as a novel proxy for estimating human population distribution. I examine how open-source data—previously leveraged in research such as Erik Rye's work with Apple's WiFi location API—can be harnessed for localised analysis. Rye’s approach, which utilizes Apple’s API to return locations of BSSIDs and their neighboring networks, inspired a deeper question: Could one "crawl" outward from a single point to systematically map all BSSIDs in a region?