Ubisoft reopens Rainbow Six Siege after shutting down the servers amid a breach exploiting the game's internal systems, and says the Marketplace remains closed
Ubisoft's Rainbow Six Siege (R6) suffered a breach that allowed hackers to abuse internal systems to ban and unban players …
BleepingComputerLawrence Abrams
Context & Ripple Effects
Ubisoft first took Rainbow Six Siege and its in-game Marketplace offline while it addressed the incident; the game’s reopening separates restoration of core play from restoration of its transactional layer. The company had also investigated reports of compromised internal tools in an earlier reported security incident, making control of privileged systems a recurring operational concern.
The breach matters because it reportedly let attackers manipulate player bans, directly challenging the integrity mechanisms that support a live-service game. Keeping the Marketplace closed preserves a containment boundary while Ubisoft assesses the affected internal systems.
First-order effects
Rainbow Six Siege players can return to the game, but the Marketplace remains unavailable, limiting in-game trading while Ubisoft continues remediation.
Ubisoft must review and restore trust in enforcement actions after attackers used internal systems to ban and unban players; affected account decisions may require validation.
Second-order effects
The split reopening puts pressure on Ubisoft to demonstrate that gameplay and moderation controls are secure before reactivating a player-facing marketplace.
A prolonged Marketplace closure can interrupt trading activity and concentrate player attention on the reliability of Ubisoft’s live-service operations rather than on game content.
Third-order effects
The episode reinforces that live-service publishers’ internal administration tools are high-value security targets: compromise can disrupt both player governance and virtual-market operations at once.
If similar incidents persist, publishers may need to separate privileged moderation, service operations, and marketplace access more tightly, with stronger deployment governance around tools that can alter player status.
The trend: Live-service game security is increasingly inseparable from the integrity of the internal tools that govern player access, enforcement, and digital economies.
A rollback is currently ongoing and afterwards, extensive quality control tests will be executed to ensure the integrity of accounts and effectiveness of changes. The team is focused on getting players back into the game as quickly as possible. Please know that this matter is b…
Here's the word on the internet streets: - THE FIRST GROUP of individuals exploited a Rainbow 6 Siege service allowing them ban players, modify inventory, etc. These individuals did not touch user data (unsure if they even could). They gifted roughly $339,960,000,000,000 worth …
Our initial tests have concluded and we are now conducting a soft launch, opening the game to a small number of players only, while we complete live tests. More information on the rollback and full live relaunch to come.
➡️ Our live tests are now complete and we are opening the game to all players. Please note that you may experience a queue when connecting, as our services ramp up. ➡️ The rollback is also complete. 🔸 Players who did not log in between December 27th 10:49 UTC and December 29th
➡️ Nobody will be banned for spending credits received. A rollback of all transactions that occurred since 11 AM (UTC time) is underway. ➡️ The ban ticker was turned off in a past update. Any messages seen were not triggered by us. ➡️ An official R6 ShieldGuard ban wave did
I remember pen testing an online game & learning almost immediately that they were far more interested in game cheats than security or privacy violations. They would more easily recover from those versus cheats that rendered a game unplayable or deprived them of add on revenue
Day 2 of the Rainbow Six Siege Outage. Reality is starting to blur. I wake up instinctively checking servers. There's no ranked, no customs, nothing. I caught myself holding an imaginary angle in my hallway. Time moves painfully slow. I don't know how much longer I can take this.
Imagine someone hacked into the EA MUT servers, gave every single active player every card in the game then also granted them millions of coins. This is what just happened to Rainbow Six Siege. Wow.
Massive Rainbow Six Siege suffered a breach that allowed hackers to abuse internal systems to ban and unban players, manipulate in-game moderation feeds …