Attackers caused so much damage in Rainbow Six Siege that Ubisoft shut down the entire game

Over the weekend, Ubisoft apparently lost control of one of its biggest video games, Rainbow Six Siege, as attackers appeared to infiltrate it and take control of a number of key functions. The bizarre new game operators created a chaotic melee that Ubisoft seemingly couldn’t put aside while still keeping the game online.

So the game, a team-focused tactical first-person shooter much like Counter-Strike but with a focus on destructible environments, was intentionally removed on Saturday. As of this writing on Sunday, it was still not backed up. There is no campaign mode for the game, so there is nothing to play with servers down.

There is no official statement on the identity of the alleged perpetrators.

A rollback is currently underway and extensive quality control testing will then be performed to ensure the integrity of the accounts and the effectiveness of the changes. The team is working to get players back into the game as quickly as possible. Please know that this matter is… https://t.co/cG4zBIBBGB

– Rainbow Six Siege X (@Rainbow6Game) December 28, 2025

Rather worryingly, the X account of the VX-Underground malicious code and information repository complaints that the Rainbow Six Siege attack coincided with several broader and potentially more damaging infiltrations at Ubisoft, which reportedly included the theft of proprietary code and possibly even private user data, although none of this has been confirmed.

According to Bleeping Computerno information has yet been made public about the nature of the Rainbow Six Siege attack, and the reports in this publication were taken from reports posted online by players.

How devastating was it? Well, according to one X user, the attackers turned the ban announcement pop-ups into a sort of ticker, making them drip lyrics fromIt wasn’t me» by Shaggy.

It’s one thing for Rainbow 6 Siege to be completely taken over by hackers

But let them also be creative 😭 pic.twitter.com/gsuhCVJmxv

– Jake Lucky (@JakeSucky) December 27, 2025

More substantively, Bleeping Computer claims that the attackers took control of player bans and unbanning, and distributed 2 billion credits in in-game currency, as well as an equally destructive amount of “fame” economy, in-game influence points that also function as a kind of currency. All skins and cosmetic items have also been opened to all players.

The credits are sold for actual fiat currency, so according to Bleeping Computer’s calculations, two billion credits is about $13.33 million, although it’s doubtful that anyone could have converted that into an actual fortune.

With their game effectively an asylum run by openly hostile inmates, Ubisoft took Rainbow Six Siege’s servers and its accompanying game marketplace offline while engineers set about putting everything back together. Ubisoft posted on X that players would not be punished for spending the credits the attackers gave them.

➡️ No one will be banned for spending received credits. A restore of all transactions that occurred since 11 a.m. (UTC time) is in progress.

➡️ The ban ticker was disabled in a previous update. The messages seen were not triggered by us.

➡️ An official ban wave of R6 ShieldGuard has made… https://t.co/zbPYDJQa3O

– Rainbow Six Siege X (@Rainbow6Game) December 27, 2025

The bad news for players, however, is that as of Sunday, engineers were canceling all these purchases as part of the repair effort.

THE last post of Rainbow Six Siege as of this writing, says “The team is focused on returning players to the game as quickly as possible” and that “the matter is being handled with extreme care and therefore timing cannot be guaranteed.”

Gizmodo contacted Ubisoft to find out if the attack is really more extensive than Rainbow Six Siege, if any data was stolen from Ubisoft and if there is still information on the nature of the attack and what vulnerability was exploited. We will update if we receive a response.