tracking app has tracks visible
I don't understand why this is a revelation. A tracking app has been recording tracks, collating then generates a heat map. Strava are quite transparent about this on the users' profile page. You can opt out from having your data used this way, and you can hide your activities from those who you have not permitted to follow you.
If you don't review your privacy settings then, surprise, your activities are open to all Strava users to see - more fool you.
Biting the hand that feeds IT
