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Mapping Virus and Spam Sources

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Postini, a service that provides email and information management protection, has a couple of dynamic world maps that display sources of email spam and viruses. No legends accompany that maps but a note in the downloadable data file indicates “that intensity should be considered an arbitrary measure of event size; an intensity of zero does not mean that nothing happened.” The maps are not pretty nor is the process by which the data is mapped explained but they do display an interesting phenomenon.

By way of aneiou, le blog de flu

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