Emily Steel and Jessica E. Vascellaro report:
Facebook, MySpace and several other social-networking sites have been sending data to advertising companies that could be used to find consumers’ names and other personal details, despite promises they don’t share such information without consent.
The practice, which most of the companies defended, sent user names or ID numbers tied to personal profiles being viewed when users clicked on ads. After questions were raised by The Wall Street Journal, Facebook and MySpace moved to make changes. By Thursday morning Facebook had rewritten some of the offending computer code.
Read more in the Wall Street Journal.
Update: Did WSJ sensationalize what is a relatively minor concern? See some of the follow-up, here.