Virus - Storm worm (2007)

Another big Trojan attack was Storm worm that hit computers worldwide in January 2007. The Storm worm originally posed as breaking news of bad weather hitting Europe. Over time, the worm was also seen in emails with the following subjects: personal greetings, reports that Saddam Hussein is still alive, reports that Fidel Castro is dead, sexy women, YouTube, and even blogs.

Users who fell for it unknowingly became a part of a botnet. A botnet serves as an army of commandeered computers, which are later used by attackers without their owners' knowledge.

The worm infected millions of PCs worldwide and was compared to the Sasser and Slammer attacks of 2006 in terms of damage caused. On April 1, 2008, a new storm worm was released onto the Net, with April Fools-themed subject titles.