Wow. From Flashpoint, yesterday:
On March 3, 2021, Flashpoint detected a breach of the elite Russian cybercrime forum known as “Maza” (originally called “Mazafaka”). This breach follows recent attacks (both attempted and successful) on other Russian cybercrime forums, including the takeover of Russian-language forum Verified.
Known to be in operations as far back as 2003, Maza is a highly-restricted Russian-language cybercrime that built its notoriety over many years, cultivating a community of some of the most sophisticated cybercriminals and financial fraudsters in the criminal underground—many of whom began their respective cybercrime activities as early as the mid- to late-1990s. Little is known at this time about the attackers who successfully compromised Maza. After their successful takeover of Maza, the unknown attackers posted a warning message to forum members reading: “Your data has been leaked” and “This forum has been hacked.”
Read more on Flashpoint.
Update 5:15 pm. See also Brian Krebs’ report, Three Top Russian Cybercrime Forums Hacked.