Useful technology can often have unintended consequences. The Washington Post reported about an interactive map:
"... posted on the Internet that shows the whereabouts of people who use fitness devices such as Fitbit also reveals highly sensitive information about the locations and activities of soldiers at U.S. military bases, in what appears to be a major security oversight. The Global Heat Map, published by the GPS tracking company Strava, uses satellite information to map the locations and movements of subscribers to the company’s fitness service over a two-year period, by illuminating areas of activity. Strava says it has 27 million users around the world, including people who own widely available fitness devices such as Fitbit and Jawbone, as well as people who directly subscribe to its mobile app. The map is not live — rather, it shows a pattern of accumulated activity between 2015 and September 2017... The U.S.-led coalition against the Islamic State said on Monday it is revising its guidelines on the use of all wireless and technological devices on military facilities as a result of the revelations. "
Takeaway #1: it's easier than you might think for the bad guys to track the locations and movements of high-value targets (e.g, soldiers, corporate executives, politicians, attorneys).
Takeaway #2: unintended consequences from mobile devices is not new, as CNN reported in 2015. Consumers love the convenience of their digital devices. It is wise to remember the warning from a famous economist, "There's no such thing as a free lunch."