What you should know about Grum and the botnet takedown
Grum–the third largest botnet in existence, and the source of nearly twenty percent of all spam traffic online–has been taken offline by authorities. In some ways the takedown is significant, but it may not change much in the grand scheme of things. Let's take a closer look at the botnet, and what the takedown means for all of us.
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Story added 20. July 2012, content source with full text you can find at link above.