ShinyHunters Walk Away from BreachForums, Leak 300,000-User Database

ShinyHunters announced and released a leaked BreachForums dataset affecting ~300,000 users that reportedly contains full account profiles (usernames, emails, registration/last IPs, session tokens, Argon2i hashed passwords, private messages and more). The group claims it holds full forum backups, warns of additional releases unless active forums shut down, and asserts it has exploits for MyBB 1.8, increasing risk to any active or revived BreachForums instances.