Twitter shutdown accounts

Twitter is suspending the accounts of some users whose computers have fallen victim to a well-known piece of malicious software that has targeted other sites such as Facebook and MySpace.

The malware, Koobface, is designed to spread itself by checking to see if person is logged into a social network. It will then post fraudulent messages on the person's Twitter account trying to entice friends to click the link, which then leads to a malicious Web site that tries to infect the PC.