In 2017, when the popular fitness app Strava released its Global Heatmap, at first, it seemed like a harmless engagement feature, perhaps a sort of Spotify Wrapped for runners. However, one observant Australian college student was the first to point out there might be more at play. Sure enough, analysts and academics soon confirmed that Strava’s gold mine of data posed an overlooked security risk, carrying implications far more consequential than exposing the most underrated running trail in town.

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