A new report claims that the activity-tracking social network Strava — already knocked off stride when it was
To make matters worse,
In fewer words, people who followed the company’s advice about how to keep their home addresses private may have instead made them easier to find.
A Venn diagram of risk
The post by Wandera, one of a
(Warning, geometry ahead.)
“Using the ending points of an activity, it is possible to determine which radius option was selected by the user and then to triangulate the exact location of the selected address,” the report says. “As the privacy zone is of equal size in each activity, it’s possible to represent this graphically by increasing the radius of circles around each activity end marker until three or more circles intersect.”
Think of the Venn diagrams that have become their own internet meme, except that in this case they let other people know where you live, or at least w