Stony Stevenson writes "Unisys, a major government IT contractor, is reportedly being investigated for failing to detect cyber-attacks, and then covering up its failings. Two US congressmen have called for an investigation into cyber-attacks aimed at the Department of Homeland Security, along with a contractor (that would be Unisys) charged with securing those networks. 'The House Committee on Homeland Security's investigations led them to believe the department is under attack by foreign powers, and could be at risk because of "incompetent and possibly illegal activity" by a US contractor. The congressmen didn't name the contractor in the letter. However, the Washington Post on Monday reported that the FBI is investigating Unisys, a major information technology firm with a $1.7 billion Department of Homeland Security contract, for allegedly failing to detect cyber break-ins traced to a Chinese-language Web site and then trying to cover up its deficiencies.'" Unisys denies it all.