September 2007 -- Helen Clark, New Zealand's prime minister, confirms that foreign intelligence agencies tried to hack into government networks but says no top-secret information was compromised
September 2007 -- Strategypage.com calls China "Computer Crime Central" in a report that focuses on "poisoned" websites that try to steal financial data (like bank account login information). Strategypage argues that some Internet criminal activity appears to link to "attacks on Western military and government networks"
June 2007 -- U.S. officials say the Chinese military hacked into a network at the Pentagon, forcing the closure of part of a computer system that serves the office of Defense Secretary Robert Gates. China denies the allegation
April-May 2007 -- Over a period of weeks, Estonia suffers what "The Washington Post" describes as "massive and coordinated cyberattacks on websites of the government, banks, telecommunications companies, Internet service providers, and news organizations." Bank accounts are "probed" and e-mail services shut down
2001 -- An unemployed 19-year-old Welshman hacks Microsoft founder Bill Gates' credit-card details and sends him a shipment of the drug Viagra in an online spree that ends with an FBI swoop on the teenager's village. Sentenced to three years of community rehabilitation for stealing credit-card information from thousands of people, the man is later employed by a computer-software firm
1998 -- Hacking collective the Electronic Disturbance Theatre launches a denial-of-service attack on the U.S. Defense Department's website, holding what it calls an "online sit-in" to publicize its support of the Zapatista rebels in Mexico. The Pentagon responds by disabling the attackers' computers
compiled from media and agency reports