> The Global Heat Map was posted online in November 2017, but the information it contains was publicized Saturday only after a 20-year-old Australian student stumbled across it. Nathan Ruser, who is studying international security and the Middle East, found out about the map from a mapping blog and was inspired to look more closely, he said, after a throwaway comment by his father, who observed that the map offered a snapshot of “where rich white people are” in the world.
This seems to have nothing really to do with Marcus Ranum's blog post that the OP linked to.
Readit News
https://www.washingtonpost.com/world/a-map-showing-the-users... is the recent WaPo article titled "U.S. soldiers are revealing sensitive and dangerous information by jogging".
> The Global Heat Map was posted online in November 2017, but the information it contains was publicized Saturday only after a 20-year-old Australian student stumbled across it. Nathan Ruser, who is studying international security and the Middle East, found out about the map from a mapping blog and was inspired to look more closely, he said, after a throwaway comment by his father, who observed that the map offered a snapshot of “where rich white people are” in the world.
This seems to have nothing really to do with Marcus Ranum's blog post that the OP linked to.