Facebook leak hits Zynga users

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Millions of Facebook users have had their personal information leaked to advertising companies through various Zynga games, it has emerged.

A wall Street Journal investigation into the matter concludes that all of the 10 most popular apps on Facebook had been transmitting user IDs to external companies, igniting new criticisms of privacy defences on the social network.

The probe implicates six Zynga games: FarmVille, Texas HoldEm, Caf World, Mafia Wars, Treasure Isle and FrontierVille.

Develop has the full story.