<A HREF="http://www.pcworld.com/article/id,138694-pg,1/article.html">A vastly powerful new supercomputer is on the loose.</A> With more than a million CPUs and a petabyte of RAM, it completely dwarfs its next-largest competitor, IBM's BlueGene/L, which contains a paltry 128,000 processing cores and 32 terabytes of memory. And the new supercomputer is growing larger every day.

There's just one problem. This powerhouse isn't run by a university, or IBM, or a government agency. It's the Storm Worm botnet, capable of sending staggering amounts of spam and viruses around the globe, and launching devastating attacks against security researchers or anyone else who might oppose it.