An exploit bug forced Blizzard to shut down the Diablo III auction house after a recent update. But now, the issue has been dealt with and the system is back up and running again.
A recent update to Diablo III left the auction house with an exploitable bug which players used for profit. The exploit has been fixed and the money “earned” has been donated to charity. John Hight, production director for Diablo III, posted on the game’s forum to inform the players of what had happened, and how Blizzard were dealing with it. "Players discovered a bug that allowed gold to be duplicated via the real-money Auction House," says Hight, "This resulted in an overflow on cancelled auctions that yielded a greater amount of gold in return." 415 players were caught taking advantage of this bug and have had their accounts deactivated.
Blizzard considered rolling back the Auction House, but seeing as that would remove items and progress, punishing a large number of players for the actions of a few, the company decided against it. Instead, they opted for taking the exploited profits and giving them away: "We'll be donating all proceeds from auctions conducted by the suspended or banned players—including all of THEIR sale proceeds that we intercepted as well as our transaction fee—to Children’s Miracle Network Hospitals."