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Wait, how does FB Messenger track your browsing or purchase history? Is it tracking that history outside of the app??


According to themselves (Facebook) they are tracking a ton of stuff. They say so in their own privacy policy.

https://9to5mac.com/2021/01/04/app-privacy-labels-messaging-...


Yeah I went through the document. I'm asking on more of a mobile development perspective. The list makes it sound like when I open up Chrome and go to a site, Facebook knows right away.




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