This complaint concerns material changes to privacy settings made by Facebook, the largest social network service in the United States, that adversely impact the users of the service. Facebook now discloses personal information to the public that Facebook users previously restricted. Facebook now discloses personal information to third parties that Facebook users previously did not make available. These changes violate user expectations, diminish user privacy, and contradict Facebook’s own representations. These business practices are Unfair and Deceptive Trade Practices, subject to review by the Federal Trade Commission (the “Commission”) under section 5 of the Federal Trade Commission Act.