Full text of a recently released GAO (General Accounting Office) report, "Information Security: Computer Attacks at Department of Defense Pose Increasing Risks," (GAO/AIMD-96-84) is available from the Government Printing Office Web site. Among GAO's findings are: "only about 1 in 500 attacks is detected and reported, but the Defense Information Systems Agency (DISA) estimates that DOD is attacked...
An October 29, 2002 news article in USA Today describes a recent surge in activity of politically motivated hackers and cyber terrorists. The attacks, which range from Web site defacements to viruses and worms, are probably being perpetrated by individuals opposed to the US war on terrorism and action in Iraq.