Strava has published details about secret military bases, and an Australian was the first to know - ABC News
Fitness tracking app Strava gives away location of secret US army bases | GPS | The Guardian
Strava's fitness heatmap has a major security problem for the military | Mashable
Fitness Tracker Data Highlights Sprawling U.S. Footprint in Africa
Google Maps chart options | Looker | Google Cloud
U.S. soldiers are revealing sensitive and dangerous information by jogging | The Seattle Times
FitBit has a heatmap that shows where FitBit wearers are walking most. You can see what parts of your city are most walkable, and even spot secret military bases in the data. :
Experts Say Fitness Tracker Map Reveals Secret Military Bases