A Hong Kong resident has pleaded guilty in a U.S. federal court for his part in a scam where tens of millions of spam emails were sent, artificially pumping up the stock price of Chinese companies between 2004 and 2006.

According to media reports in the U.S., How Wai John Hui, a resident of Hong Kong and Vancouver, was the CEO of U.S.-based China World Trade, one of the companies whose stock was inflated as a result of the scam. As part of his plea agreement with prosecutors the 50-year-old businessman could face a sentence of between 63 and 78 months in jail.

"While there's been a significant drop in pump-and-dump stock manipulation spam since this alleged conspiracy, it's still encouraging to see authorities pursue cases like this, and bring the perpetrators to justice," said Graham Cluley, senior technology consultant at Sophos. "Without punishment, the cybercriminals may be tempted to revisit old techniques and this will cause more trouble for computer users."

Hui might be part of spam king's gang

As in many cases of cybercrime that we encounter today, Hui wasn't working alone, said Sophos. In fact, he is believed to have been part of a gang which included the notorious Alan Ralsky who was previously accused of being the world's biggest spammer, Sophos added.

"The alleged association with spam king Alan Ralsky really spells out the seriousness of this case," said Cluley. "While Ralsky has always maintained he is not a spammer, but a legitimate email marketer, the US Department of Justice claims that in the summer of 2005 alone, Ralsky made US$ 3 million through illegal spam operations. This is likely to just be the tip of the iceberg if it's true that Ralsky is involved in other scams too."

Hui's other fellow gang members Francis "Frankie" Tribble and Judy Devenow pleaded guilty to conspiracy and other charges in October, and are scheduled to be sentenced next year. They have all agreed to give evidence against Ralsky.

(PC World)