Sophos, a global provider in network security, has published the results of its research on the top twelve spam producing countries.
Researchers from SophosLabs, Sophos's global network of virus and spam analysis centers, examined all spam messages received at its global network of spam traps from January 2005 through March 2005.
Based on the analysis, experts found that the United States topped the Dirty Dozen chart once again, exporting an average of 35.70% of all spam during this timeframe. South Korea stood second at 24.98%, while China secured a third place at 9.71%. The other spam exporting countries are France, Spain, Canada, Japan among others.
"Even though the United States is still responsible for producing more than one-third of the world's total volume of spam, the percentage has decreased," said Gregg Mastoras, senior security analyst at Sophos.
"Last month, Sophos estimated that more than 50% of the world's spam came from zombie computers, which are PCs that have been compromised by hackers or virus writers," continued Mastoras.