EPIC has filed a complaint to the Federal Trade Commission concerning Facebook's proposed purchase of WhatsApp. WhatsApp is a messaging service that gained popularity based on its strong pro-privacy approach to user data. WhatsApp currently has 450 million active users, many of whom have objected to the proposed acquisition. Facebook regularly incorporates data from companies it has acquired.The Federal Trade Commission has previously responded favorably to EPIC complaints concerning Google Buzz, Microsoft Passport, Changes in Facebook Privacy Settings, and Choicepoint security practices. However, the FTC approved Google's acquisition of Doubleclick over EPIC's objection. Facebook is currently under a 20 year consent decree from the FTC that requires Facebook to protect user privacy and to comply with the US-EU Safe Harbor guidelines. For more information, see EPIC: In re Google Buzz, EPIC: Microsoft Passport, EPIC: In re Facebook, and Privacy? Proposed Google/DoubleClick Merger.