In this new approach, spammers substitute other letters or characters for actual letters of the alphabet, modifying the words enough to slip by filters but not enough to confuse users, who can easily decipher the messages. In such substitutions, spammers may replace "A" with "@," "B" with "8," and scramble other letters to come up with something that reads:
"It deosn't mttaer in what oredr the ltteers in a wrod are, the olny iprmoetnt tihng is taht the frist and the lsat ltteer is at the rghit pclae. The rset can be a toatl mses and you can sitll raed it wouthit porbelm."
Still, there are glimmers of hope, even for CAN-SPAM. "The law is a good start," said Brightmail's Lavaste, but he went on to say that since enforcement is such as crucial aspect in any taming of spam, it may not be until a major spammer is hauled off to jail or fined before spammers wake up and smell the coffee.
"They'll think twice only if the [economic] roadblocks are strong enough," he said, "and when there are direct attacks against them.
"Down the road, spam will become a non-issue -- it will be put back where it belongs, a nuisance rather than a threat against corporate communication -- but that's going to take a lot more effort by legislation and filtering technology alike," Lavaste concluded.