"Botnets" - large armies of hijacked personal computers that bad guys use for everything from spamming to knocking Web sites offline - are a constant security threat to business and home users alike. Disabling the online communications channels that cyber criminals use to control these drone armies is no easy feat, as more than a million individual bots are enslaved by virus writers each month. But some Internet service providers (ISPs) do a far better job than others at disrupting these networks, and as such deserve special attention for their efforts.

At Security Fix.

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