Viruses, worms, whatever, don’t have to be new to be a pain. Bill Fallon, Vice President of Product Marketing at EasyLink Services Corporation, the company that offers and operates MailWatch (“a leading Spam-blocking, virus-scanning and content-filtering service protecting corporate networks worldwide!”) : “The Klez worm, which debuted back in October 2001, continues to be the most widely circulating threat among corporate networks almost two years later. Just last month we intercepted it over 95,000 times.” That baby just seems to run and run. There are three times as many Klezes running around as the next most popular worm, Sobig (32,000).