Cyber War

In "Cyber War!" FRONTLINE investigates a number of cyber attacks that have already occurred in recent years, including "Slammer," which last January took down the Internet in South Korea and affected 911 systems and the banking system in the United States, and the "Nimda" virus that quietly attacked Wall Street in 2001.

FRONTLINE talks to cyber security experts about what these defining wake-up calls reveal about the vulnerabilities of cyberspace. This report also follows efforts by the United States to go on the offensive.

http://www.pbs.org/wgbh/pages/frontline/shows/cyberwar