Bot-nets and Spam

According to this cnet news report on sources of spam:

European spam networks have pumped out more unsolicited e-mail than those in the U.S. for the third month in a row...

Wider broadband penetration in Europe has lead to increases in gangs running bot-nets - networks of virus compromised computers. These bot-nets are used to send out spam from the compromised machines. One the largest of these bot-nets was created by the storm worm. It is in response to these bot-nets that some ISPs (Internet Service Providers) have shut down port 25, the standard port used for smtp. Which effectively cuts out part of their support for the Internet protocols (TCP/IP) they are supposed to provide.

Also on cnet, Russia has overtaken China as the largest malware distributor. Malware can includes virus' to create bot-nets and other malicious software, such as spyware designed to steal passwords or sensitive information.

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