<p>Ubisoft took Rainbow Six Siege offline on Dec. 27 following a security breach that gave players access to roughly two billion R6 Credits. The same breach also unlocked every cosmetic item in the game while also affecting player moderation tools.</p><p>R6 players started reporting unusual activity throughout the weekend as arbitrary account bans became noticeable. There were fake moderation messages and sudden inventory changes, too, before the mass distribution of premium currency.</p><h2>What happened during the Rainbow Six Siege breach?</h2><p>The Rainbow Six Siege breach gave third parties unauthorized access to Ubisoft's internal game management systems. While some accounts were randomly banned, many others received millions in premium currency.</p><p>Fake ban notifications appeared in the game's moderation ticker, displaying messages unrelated to actual player behavior. Some accounts experienced repeated bans and unbans without legitimate cause during the incident window.</p><div class="raw-html-embed"><blockquote class="twitter-tweet"><p lang="en" dir="ltr">‼️ Ubisoft’s Rainbow Six Siege servers have been hacked. Players report millions of credits added to their accounts and troll messages in the public ban chat. <a href="https://t.co/ctlsfjtfK8">pic.twitter.com/ctlsfjtfK8</a></p>— International Cyber Digest (@IntCyberDigest) <a href="https://twitter.com/IntCyberDigest/status/2004968894725865655?ref_src=twsrc%5Etfw">December 27, 2025</a></blockquote> <script async="" src="https://platform.twitter.com/widgets.js" charset="utf-8"></script></div><p><a href="https://funjible.games/news/immutable-and-ubisoft-reveal-might-and-magic-fates-tcg">Ubisoft</a> acknowledged the situation on Dec. 27 and shut down both Rainbow Six Siege servers and the in-game Marketplace. In the meantime, Ubisoft announced that players wouldn't face penalties for spending the premium currencies, but all transactions completed after 11:00 AM UTC would be reversed. Ubisoft may also decide to thoroughly investigate the incident and take the responsible parties to court, as the outage might be highly costly to the developer.</p><p>Rainbow Six Siege servers remain offline as of Dec. 29, with Ubisoft working to restore services while implementing security measures. It’s currently unknown whether the exploit may extend deeper into Ubisoft's infrastructure.</p><p>Luckily, account security remains stable according to Ubisoft's statements. The breach targeted game systems rather than player credentials or personal information. All technicalities aside, the fact that Rainbow Six Siege had to remain online for days has been the most significant blow for the player base.</p><p>R6 has one of the most dedicated player bases in the gaming world, and most had to switch to other games until Rainbow Six’s servers came back. Considering many titles are currently hosting winter and holiday-themed events, like&nbsp;<a href="https://funjible.games/news/anichess-launch-winter-clash-as-illuvium-merge-ranked-queues">Anichess’ Winter Clash</a>, those waiting should enjoy some festive fun elsewhere before returning to their main game. Ubisoft has not shared a firm timeline for a full return, but server restoration and account cleanup remain ongoing as the company works to close the exploit and stabilize its systems.</p><div class="raw-html-embed"><iframe width="560" height="315" src="https://www.youtube.com/embed/0KAMneUxq3o?si=NUQf-EfByIwTUORZ" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen=""></iframe></div>

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