Massive Rainbow Six Siege breach gives players billions of credits

Ubisoft's Rainbow Six Siege experienced an in-game abuse where attackers manipulated moderation feeds to show fake bans and granted roughly 2 billion R6 Credits and all cosmetics to players (valued at ~ $13.3M), prompting Ubisoft to shut down the game and marketplace; separate, unverified claims allege exploitation of a MongoDB memory-leak vulnerability (CVE-2025-14847, "MongoBleed") to access internal source code and user data.