Dirty Dozen: Top 12 Spam Countries Identified

5. Taiwan

Taiwan earned the No. 5 spot on the Sophos Dirty Dozen List for pushing slightly more than 3.6 percent of spam globally. Sophos' Ducklin said the list doesn't explain where the spam originates, only how it gets relayed from spammers to their victims. Systems that are infected with malware are often turned into spam relay systems as part of a global botnet operated by a cybercriminal abroad, Ducklin said.

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