Blizzard has taken Diablo III auction house offline while it fixes a gold-duping bug that was introduced by the game’s latest update.
Both real-money and gold-based auction houses will remain down until Blizzard fixes the bug, identifies the users who exploited it and reverse all effects.
"At this time (and after careful consideration), we've decided to not move forward with rolling back the servers," a Diablo III community manager announced on the game's official forums. "We feel that this is the best course of action given the nature of the dupe, how relatively few players used it, and the fact that its effects were fairly limited within the region. We've been able to successfully identify players who duplicated gold by using this specific bug, and are focusing on these accounts to make corrections. While this is a time-consuming and very detailed process, we believe it's the most appropriate choice given the circumstances."
Blizzard has already identified the bug and implemented a suitable fix. Currently, the company is applying the fix and reversing the effects of the bug. In the meanwhile, Diablo III gold and real-money auction houses are “down for maintenance.”