Has Mass-Mailed Malware Peaked?

Ant writes "Broadband Reports posted a CRN article about researcher saying mass-mailed worms have reached their peak. Six years ago, on March 26, 1999, Melissa, the first virus that spread by mailing copies of itself to e-mail addresses it found on infected machines, swept the Internet. Today, the researcher who led authorities to the hacker who wrote Melissa, says that mass-mailed worms have reached their peak."