I don't know how certain we can really be, I had the same concerns myself, I could just keep my account disabled and stop feeding information to Facebook but st

I don't know how certain we can really be, I had the same concerns myself, I could just keep my account disabled and stop feeding information to Facebook but still keep access to it myself if I ever needed it. Or I delete my account, Facebook maybe has access to that data but I do not, it was a thought process that delayed my action for a while. This non-committal situation created some anxiety for me, it was a decision that still needed to be made in my mind so wouldn't go away. Then Bryan Lunduke went through the process on his YouTube channel and he claims his contacts at Facebook were unable to find his data once it was deleted, so that was good enough to push me off the fence and I finally made the decision to delete. I can never be absolutely certain but there's really not much more I can do besides use European privacy laws to try and force the issue, but that probably won't do much about the NSA backup. ;) But my mind is at rest now, I don't worry about it apart from doing my best to limit tracking online but that's another story.