Spam, spam and more spam....and most of it come from the US.

Researchers at security software company Sophos found that 42% of all spam sent during the last year originated in the United States. The data was based on a scan by its researchers on a global network of computers designed to attract spam e-mails and virii, or honey pots as they are known.

Sophos warned that many spammers are using hacked PCs with broadband connections to send out their spam, which explains why top broadband country, South Korea, is in second place in the list.

 Graham Cluley, senior technology consultant for Sophos, said "Many of the computers sending out spam are most likely to have had their broadband internet connections exploited by remote hackers. Zombie computers, PCs that have been compromised by hackers or virus writers, are sending out over 40 percent of the world's spam, and many users who fall victim are unaware,"

The Can-Spam Act which came into operation at the end of last year, and was supposed to curb US spam, simply isn't working, he stated.  "it is quite evident that that the Can-Spam legislation has made very little headway in damming the flood of spam,"