An anonymous reader writes "Twenty-four federal departments and agencies earned a collective grade of C-minus last year for their performance in meeting computer and network security requirements, according to marks handed out by a key congressional oversight committee today. The government-wide grade is up slightly from the 2005, when it earned an overall grade of D+. Eight agencies earned A grades, while as many warranted failing marks. '..the Department of Defense led a group of eight agencies that received failing marks for computer security. Also receiving that dubious distinction were the departments of Agriculture, Commerce, Education, Interior, State and Treasury, as well as the Nuclear Regulatory Commission. The Department of Homeland Security earned a D, although its overall performance improved since 2005. The Department of Veterans Affairs did not provide enough data to earn a grade. In 2005, it received an F.'"