Since you can’t “unshare” data, a solution for the breach is only meaningful if it helps to make the improperly-shared data useless. And there isn’t really any

Since you can’t “unshare” data, a solution for the breach is only meaningful if it helps to make the improperly-shared data useless. And there isn’t really any way for Facebook to do that since so many of the details they insist on collecting aren’t things that people can change. And even if Facebook could rein in all this data, they can’t undo side effects of having that data, like elections swayed or relationships ruined. We all need a way to have the equivalent of frequently-rotated encryption keys in our online discourse. If I revoke privileges for some entity, everything they have on me should become useless to them.