December 15, 2008 (Computerworld) Spam volumes are creeping up again after plummeting four weeks ago when a rogue hosting company was yanked off of the Internet.
IronPort Systems Inc., a maker of e-mail security tools, said that spam volumes last Tuesday reached 96.8 billion messages, over 30 billion more than were sent in the days following the Nov. 11 takedown of McColo Corp. by its primary Internet service providers.
An average of 190 billion spam messages were sent daily in the month prior to the shutdown of McColo for allegedly harboring cybercriminals running some of the biggest spam-spewing botnets.
Joe Stewart, director of malware research at SecureWorks Inc., said botnets that were mostly unaffected by McColo's disappearance are responsible for the resurgence.
News 3 years ago
