Guessing that folks who went to #WomensMarch or #InaugurationDay did not realize that an adtech company was tracking their attendance.https://twitter.com/thesense360/status/824642562082304002 …
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It's all on company's site. User grants loc data from app permission. Its privacy policy says data shared with third parties.
I have mixed feelings on the consequences. Fundamentally privacy invasion is bad and can be used for targeting dissidents...
...but it also pushes less-vulnerable people into the same risk pools and creates "strength in numbers" defense.
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