Charts show spam-spewing zombified computers are a truly global problem
Kuala Lumpur, Malaysia, February 5, 2014 – The award-winning Sophos Naked Security blog today revealed the Dirty Dozen top spam-relaying nations, as it published the final “Spampionship” league table of 2013.
Once again, it was the USA which earned the league’s top spot, generating 14.5 percent of the total spam volume sent during the last quarter of the year, giving it a clean sweep of top finishes for 2013. However, the gap to second place narrowed, with China re-emerging as a major player in the spam sending Dirty Dozen, leaping from 4.6 percent to 8.2 percent, while Russia’s spam contribution edged up from 3.0 percent in Q3 to 5.5 percent in Q4.
The Dirty Dozen results were compiled by SophosLabs to show where in the world the greatest volumes of spam were being sent from during the final three months of last year.
Spammers don't send spam themselves: they use botnets, or "zombie armies", of malware-infected computers to distribute their spam for them, almost always without the owners of the infected computers being aware.
Turning to the Spampionship table of spam-relaying countries by population, the numbers indicate the average “spamminess” per person compared to the USA. Results show things have stayed pretty stable, as Belarus retained its top spot, with the average computer there over 10 times more likely to send spam than if it were in the USA. Meanwhile other countries like Uruguay, Taiwan, Luxembourg and Macedonia continued to jockey for position in the top 12. The only significant move came from Kuwait, with figures showing there had been almost a three-fold increase in spam-relaying per capita, growing from 2.1 times the US figure per capita, to 6.07, to elevate it to second place in the table.
"If your country isn't in the Dirty Dozen, it's easy to feel smug, or at least complacent,” says Ducklin. “Don't do that: if you're a spam sender, Dirty Dozen or not, you are a net positive contributor to cybercrime.”