SAN FRANCISCO - Referrer header information that was transmitted to third parties along with social network gaming applications did not constitute "confidential user information" or the "contents of [a] communication" and, thus, did not violate the Electronic Communications Privacy Act (ECPA), a Ninth Circuit U.S. Court of Appeals panel concluded on May 8, affirming the dismissal of class actions against Zynga Game Network Inc. and Facebook Inc. (In Re: Zynga Privacy Litigation, No. 11-18044, In Re: Facebook Privacy Litigation, No. 12-15619, 9th Cir.; 2014 U.S. App. LEXIS 8662).