I'm not sure if this is 100% accurate, but I just recently heard from a friend of mine that when you upload a photo onto Facebook from your cell phone, Facebook knows exactly when and where you were when the photo was taken. Facebook figures this out by tracking the location of the cell phone using the cellular network's cell towers.
I tried looking for an article about this topic but not a lot came up. Has anyone else heard about this?
This is creepy.
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