http://news.com.com/Hackers+slam+Everquest+II+economy/2100-1043_3-5829403.html
According to Chris Kramer, director of public relations for EQ2 publisher Sony Online Entertainment, the players had on Saturday begun using their so-called "duping bug" to make large quantities of platinum, the game's currency. (A duping bug is a hack that exploits a weakness in online games' code to effectively create counterfeit currency or other goods.)
The players then began trying to sell the ill-gotten plat on Station Exchange, the official auction exchange for EQ2 weapons, armor, currency and other virtual goods. "The amount of money in the game increased by a fifth in about 24 hours," Kramer said. "We have a lot of alarms for this kind of thing, and they all went off on Saturday."
The economy of the MMORPG (massively multiplayer online role-playing game) was quickly brought back to its pre-attack state, Kramer added.
But many players of online games such as EQ2 are opposed to such trafficking, mainly since it gives people with money to spend an advantage over those who put in the time advancing their characters manually. So SOE has segmented EQ2 into discrete servers, some of which allow the trading and some which don't. Players from the two kinds of servers cannot play against each other.
Kramer also said that SOE has tools that allowed it to track all the duped platinum and remove it. Thus, he said, while the EQ2 economy had taken a huge inflationary hit on Saturday, the company's customer service team put in a lot of overtime over the weekend and the problem was largely resolved by Sunday.