During the past two years, security experts and software vendors have downplayed the threat of so-called worm viruses, but new evidence suggests that the attacks are still as dangerous, if not more so, than ever.

While the enormous mass-mailing worm viruses of years past -- such as the well-known MyDoom, Sobig, and Slammer attacks -- that were aimed at crippling IT infrastructure have all but disappeared, smaller outbreaks that aim to load financially-motivated malware onto end users' computers -- such as the recent Storm Worm -- will continue to menace the Internet, according to researchers.

At InfoWorld.

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