The Security Breach
Web site defacements of all kinds are not slowing down[md]they're increasing in number and sophistication. To see how common defacements are, check out Attrition.org, a site that contains quite a bit of information on defacements on the Net.
The CODE RED worma self-replicating malicious codeexploits a known vulnerability in Microsoft IIS servers. While the CODE RED worm appears to merely deface web pages on affected systems and, due to its self-replicating nature, sends itself to other randomly chosen hosts from the infected machine, the IIS indexing vulnerability it exploits can be used to execute arbitrary code on a local network. With this level of privilege, the worm gives the malicious attacker complete control of the victim's system.