EPIC filed the opening brief in EPIC v. NSA, No. 11-5233, challenging the National Security Agency’s response to EPIC's Freedom of Information Act request. EPIC is seeking information about the widely publicized cybersecurity agreement between the NSA and Google that followed the January 2010 China hack. The NSA claimed it "could neither confirm nor deny" the existence of any information about its relations with Google. After the attack, Google's implemented encryption technology for Gmail by default, a privacy safeguard EPIC and technical experts had urged in 2009. For more information, see EPIC v. NSA: Google / NSA Relationship.