Microsoft Seeks Justice Against Notorious Spammer

Microsoft is hoping that federal agents will bring to justice one of the world's most notorious spammers, known to the company only as Cosma2k. According to Microsoft, Cosma2k is the handle of the alleged ringleader of the Rustock botnet, which earlier this year was the purveyor of more e-mail spam than any other network in the world, sending as many as 30 billion messages a day at its peak.