Facebook, MySpace Confront Privacy Loophole (Wall Street Journal)
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.
Advertising companies were given information that could be used to look up individual profiles, which, depending on the site and the information a user has made public, include such things as a person's real name, age, hometown and occupation.
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In addition to Facebook and MySpace, LiveJournal, Hi5, Xanga and Digg also sent advertising companies the user name or ID number of the page being visited. (MySpace is owned by News Corp., which also owns The Wall Street Journal.) Twitter also was found to pass Web addresses including user names of a profile being visited on Twitter.com.
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