Sophos has selected its “dirty dozen” of countries that relay spam for the second quarter of 2013, and the U.S. has taken the top spot.

With a population of more than 300 million people that makes up a large portion of the world’s online traffic, Sophos security evangelist, Paul Ducklin, said it is no surprise that the U.S. is the leader.

“Remember that the Dirty Dozen doesn’t tell us from where the spam originates,” he said. “It tells us how spam gets relayed from the crooks to their potential victims.”

Belarus has risen up to take the second spot, with Ukraine, Kazakhstan, and Argentina and making their debut as France, Peru, and South Korea drop from the list.

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