Codemasters and AMD have confirmed that over three million digital vouchers for Steam have been stolen for DiRT 3. According to a report from Industry Gamers (citing a Steam forum post), hackers used an .htaccess exploit that allowed them to gain access to an .sql database containing the codes. Those codes were meant to be used for a future AMD graphics card promotion.
"This past weekend, activation keys associated with free DiRT 3 game vouchers shipping with select AMD products were compromised," said AMD in a statement. "These activation keys were hosted on a third party fulfillment agency website, www.AMD4u.com, and did not reside on AMD's website. Neither the AMD nor Codemasters servers were involved."
"We are working closely with Steam, Codemasters, and our fulfillment agency to address the situation. AMD will continue to honor all valid game vouchers, however the current situation may result in a short delay before the vouchers can be redeemed."
The good news is that the huge batch of codes that were stolen can be traced, and Codemasters claims that they should be able to deactivate the codes in due time.