This complaint concerns material changes to privacy settings made by Facebook, the largest social network service in the United States, which adversely impact users of the Facebook service. Facebook’s changes to users’ privacy settings disclose personal information to the public that was previously restricted. Facebook’s changes to users’ privacy settings also disclose personal information to third parties that was previously not 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.