The Diablo III servers have not been hacked, Blizzard said today in an update to the game's official forums at Battle.net. Addressing security concerns, among other things, Blizzard also said the number of players who have contacted the company about potential account compromises is "extremely small."
The company said it is aware of suggestions that account compromises are occurring in ways outside of "traditional" methods, calling out "session spoofing" as an example. Blizzard has examined this possibility and found no reason to believe accounts are being hacked in this way and even said such an exploit is "technically impossible."
The Diablo III launch continues to be problematic for Blizzard, as the company said it is "working around the clock" to address issues as they arise.
This is the second time this week Blizzard has addressed Diablo III security issues. On Tuesday, the developer said reported security compromises were not on Battle.net's end, and encouraged players to use authenticator programs to step up their level of protection.
Elsewhere in the update, Blizzard revealed it has made several hotfixes to address gameplay issues in Diablo III since the game launched. A collection of these changes are available at the game's website. Additionally, the company said further server maintenance will be required, and a patch that will apply bug fixes and address client issues will roll out next week.
On top of this, Blizzard said it continues to investigate how best to go about reapplying achievements some Diablo III gamers lost at launch. The company said no firm details are available at present, but more information will be shared "in the weeks ahead."
Lastly, Blizzard addressed the already delayed release of the Diablo III real-money auction house. This service has now been delayed indefinitely out of May. The company said it needs "a bit more time to iron out the existing general stability and gameplay issues" ahead of the auction house's release.
Upon release, Diablo III faced a string of issues, including a bug that made the game unplayable for some. Blizzard was quick to apologize for the game's rocky launch, saying last week that it did not do enough to ensure a smooth debut.
Diablo III sold 3.5 million units at launch. For more on Diablo III, check out GameSpot's review.