Some instances of Internet outages caused by hijacked traffic, as listed by the Department of Homeland Security and other sources:
April 1997: MAI Network Services, an Internet service provider in Virginia, passes bad routing information to Sprint, which relays it, causing widespread outages.
April 1998: An Israeli ISP causes widespread outages.
December 1999: AT&T's server network is hijacked by another ISP.
May 2000: Sprint addresses hijacked by another ISP.
April 2001: Global Internet carrier Flag Telecom hijacks routes.
December 2004: Turk Telekom, a Turkish ISP, hijacks much of the Internet on Christmas Eve.
September 2005: AT&T, XO and BellSouth traffic is misdirected to Bolivia. The next day, it's sent to Germany instead.
January 2006: Traffic from several U.S. ISPs hijacked by a telecommunications unit of Con Edison in New York.
February 2008: Pakistan Telecom hijacks YouTube, affecting much of the world.
April 2010: China Telecom, the country's largest ISP, hijacks the Internet, causing outages spreading to Europe and the U.S.