Hackers claim to have stolen credentials of members of Congress to protest the PRISM surveillance program. Anonymous hackers also announced via Twitter that the list of credentials came from a senate.gov sub domain. House staffers issued a security advisory that confirmed the. passwords the hackers posted are not accurate. Some of the email addresses exposed belonged to staffers who no longer work in Congress. Some staffers raised concern on the level of security granted by outside vendors for their systems. Security expert to believe that data leaked was probably a fake or outdated credential.”]