Prompted by the observations of 20-year-old Australian student Nathan Ruser, experts weighing in on Twitter have spotted what look to be USA and allied bases in Syria, French outposts in Niger, and Turkish troops on patrol in Syria.
Nathan Ruser, an analyst with the Institute for United Conflict Analysts, observed: "If soldiers use the app like normal people do, by turning it on tracking when they go to do exercise, it could be especially risky".
It's unlikely the vulnerabilities are limited to just US military bases, although fortunately, you can shut off data sharing in the app, something the company quickly recommended military personnel do.
Strava promises that information towards its heatmap is only taken from activities that are on public view meaning that military personnel are sharing information of their location publicly potentially putting their safety at risk.
That means popular exercise routes are revealed, but with many connected devices concentrated in less populated areas, it also inadvertently gives away the geolocations of military bases.
"We are committed to helping people better understand our settings to give them control over what they share", it said. He said that private locations had already been removed from the map. Phone GPS coordinates aren't terribly accurate but collect enough data points and you can assemble a map of anything, eventually.
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To be clear, Google maps and public satellite images have previously showed the presence of military installations to the world, tech news outlet The Verge reported.
And while the locations of some of these bases are well known in war zones such as Syria and Iraq, many are also unknown.
Manning said the review would look at the use of all wearable electronics and smartphones.
Manning said he was not aware of any outreach from Strava to the Department of Defense or whether the department had asked the company to take down information corresponding to USA service members. "Recent data releases emphasize the need for situational awareness when members of the military share personal information", said Pentagon spokeswoman Harris.
US bases in Syria also show up on the map, according to defense analyst Tobias Schneider, as does the Hmeimim airbase, which is being used by Russian forces in the country.