NIPC warns of possible DDoS attacks

The National Infrastructure Protection Center (NIPC), the U.S. Federal Bureau of Investigation’s cybersecurity agency, issued an advisory Tuesday warning against the possibility of increased Distributed Denial of Service (DDoS) attacks coming as a result of the terrorist attacks against targets in New York and near Washington, D.C., a week ago.

Denial of Service attacks are attacks in which target computers are flooded with so many requests for information that they are overloaded and are unable to respond to legitimate requests for service. A DDoS attack is one in which multiple computers worldwide are taken over and used to floor target systems from multiple locations. Such an attack knocked major Web sites such as and offline for as long as a week in February 2000.

Increased DDoS attacks may begin to appear Tuesday because a group of Web site defacers called the Dispatchers have said they would be ready for such actions then, the NIPC said. The Dispatchers have already claimed responsibility for defacements of some Web sites for organizations related to last week’s attacks and have also said that they have begun to target infrastructure components such as routers for attack, the NIPC said.

Tuesday’s advisory comes on the heels of a similar one issued by the NIPC on Friday, which warned of the possibility of increased cyberattacks, including Web defacements and viruses, targeted against the “perceived perpetrators of the September 11, 2001 terror attacks.” Such incidents have already begun occurring, with a Web site crack resulting in the e-mail addresses of subscribers to a Islamic fundamentalist e-mail list having been published on the Web Saturday. The perpetrators of last week’s attacks are believed by U.S. intelligence officials to have links to Islamic extremist groups. U.S. President George Bush and other government leaders, however, have stressed that the attackers are not supported by mainstream Islamic doctrine.

The NIPC offers a tool that systems administrators can use to check whether their systems have been infected with common DDoS tools and thus might be used in a DDoS attack. The tool can be downloaded at

The NIPC, in Washington, D.C., can be reached at

Would you recommend this article?


Thanks for taking the time to let us know what you think of this article!
We'd love to hear your opinion about this or any other story you read in our publication.

Jim Love, Chief Content Officer, IT World Canada

Featured Download

Previous article
Next article

Featured Articles

Cybersecurity in 2024: Priorities and challenges for Canadian organizations 

By Derek Manky As predictions for 2024 point to the continued expansion...

Survey shows generative AI is a top priority for Canadian corporate leaders.

Leaders are devoting significant budget to generative AI for 2024 Canadian corporate...

Related Tech News

Tech Jobs

Our experienced team of journalists and bloggers bring you engaging in-depth interviews, videos and content targeted to IT professionals and line-of-business executives.

Tech Companies Hiring Right Now