Social networks leak personal information

Online social networking sites leak personal information, a new study has found, raising the possibility that users of such sites can be tracked everywhere they go online.

The study, “On the Leakage of Personally Identifiable Information Via Online Social Networks,” was co-authored by Balachander Krishnamurthy, a researcher at AT&T Labs and Craig E. Wills, a professor of computer science at the Worcester Polytechnic Institute in Massachusetts, and presented last week at the Second ACM SIGCOMM Workshop on Online Social Networks in Barcelona, Spain.

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