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by gaius_baltar 2412 days ago
> Good time to remind that Facebook has previously intentionally bypassed permission dialogs to gather data without user permission:

I wonder if the camera app leaves some by-product that the Facebook app can exploit to derive some data that the user would not usually give to FB.

Perhaps it initializes the GPS without being prompted (as camera uses it for geotagging). Or maybe it checks for the time required to enable the camera, comparing with previous attempts in a kind of A/B test, so it can know if the camera was being used for another app?