Global e-mail spam volumes have dropped 20% for the first quarter this year compared with the same period last year, according to McAfee's latest research.

McAfee attributes the dramatic reduction in e-mail spam to the November shutdown of the notorious McColo spam-generating site. In the McAfee Threat Report for the First Quarter 2009, published today, the security company said spam levels are still 30% below their peak seen in the third quarter of last year right before the shutdown of the rogue ISP McColo.

More: http://www.computerworld.com/action/article.do?command=viewArticleBasic&articleId=9132562