Each day, there is an increase in the number of threats against our nation's critical infrastructures. These threats come in the form of computer hacking, denial of service attacks, and virus deployment.

Cyber warfare raises issues of growing national interest and concern. Cyber warfare can be used to describe various aspects of defending and attacking information and computer networks in cyberspace, as well as denying an adversary’s ability to do the same. Some major problems encountered with cyber attacks, in particular, are the difficulty in determining the origin and nature of the attack and in assessing the damage incurred.

Cyber terrorism is also an issue of growing national interest

Hamas, a Middle Eastern terrorist organization, reportedly uses Internet chat rooms and e-mail to plan and coordinate operations in Gaza, the West Bank, and Lebanon.

A worm is a computer program that has the ability to copy itself from machine to machine. Worms normally move around and infect other machines through computer networks. Using a network, a worm can expand from a single copy incredibly quickly. For example, the Code Red worm replicated itself over 250,000 times in approximately nine hours on July 19, 2001. A worm usually exploits some sort of security hole in a piece of software or the operating system. For example, the Slammer worm, which caused mayhem in January 2003, exploited a hole in Microsoft's SQL server.

Hizballah, another Middle

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