This is precisely the scary factor of FB's open graph. While Facebook may be able to keep my data mostly secure (read: aside for their bugs of late), how can I

This is precisely the scary factor of FB's open graph. While Facebook may be able to keep my data mostly secure (read: aside for their bugs of late), how can I know for sure their partners will? When money is the primary driver behind who gets these partnerships (like yelps special one, anybody can use open graph) you have a fundamental and telling issue, privacy tends to go out the window when monetization of data starts to happen.