Sophos, an internet-security company, released numbers on the amount of spam sent per country between this past July and September. And the United States is responsible for about 30% of it (see chart below). Despite legislation such as the CAN-SPAM Act, the U.S. hasn’t been able to do much to stop spam. And spam is getting more complicated: fake e-cards, virus-infected PDF attachments, and worthless MP3 files or ringtons are the latest methods. In fact, according to anti-spam company MXSweep, nearly one in ten spam e-mails attach MP3 files or ringtones.
I guess I wouldn’t know much about this. I use Google’s gmail and rarely see any spam.