General Discussion
In reply to the discussion: I Say Shut Down Facebook For Sharing Our Data [View all]unc70
(6,520 posts)Even if you have never signed up on FB, they still have lots of data on you. Any time you follow a link that eventually leads to Facebook, you are tracked even if the referenced content is kept "private". Every time you visit a site with the "f" icon, Facebook keeps track of your activity. If you never signed up, when did you give them permission?
Even in so-called-private browser modes, the information leakage is still great. And don't forget all the information about you provided by friends and family. They build up over time. Little things, but not so little. Someone posts a picture and tags or captions it with your name, the image still containing time and location information. And there you were!
What Facebook knows about you is nothing when compared with Google. Every web search, every YouTube video, every Google hosted ad, every web site that uses Google Analytics, ... All part of your profile.
Note that DU itself has almost all of the items mentioned above. It is just how it is.