Report: Spam Accounts for Most E-Mail Traffic

“The sheer volume of IM attacks is a dramatic demonstration that we’re in an environment where hackers, knowing that most organizations are still unprotected against IM malware, are rapidly adopting IM for their attacks,” Said Andrew Lochart, senior director of marketing for Postini, a messaging security firm based in San Carlos, Calif.

My experience with LISHost confirms this, I’d also add Spam makes up the same percentage of Blog comments and trackbacks.