Rainbow Six Siege (R6) has been experiencing outages because Ubisoft temporarily took the servers offline in response to a major security breach that gave players massive amounts of in‑game currency and access to developer‑only items. The outage is part of Ubisoft’s attempt to contain the exploit, roll back illegitimate transactions, and regain control of the game’s backend systems.

What’s going on with R6 right now?

  • Unknown attackers gained deep access to Rainbow Six Siege’s backend, including tools that could grant items, credits, and even control ban/unban actions.
  • Many players reported suddenly receiving around 2 billion R6 Credits and Renown plus ultra‑rare skins, including developer‑exclusive and Glacier skins.
  • Because these changes looked “legit” from the system’s point of view, Ubisoft could not simply ignore them, so they shut down Siege servers and the in‑game marketplace across all platforms to prevent further damage.

Why the servers are down

  • Ubisoft confirmed that Rainbow Six Siege servers and the marketplace were “intentionally shut down” while teams worked on resolving the incident.
  • The company is rolling back all transactions and account changes that occurred during a specific window after the exploit went live, so service interruptions and login issues are expected during this clean‑up.
  • Reports describe this as a large‑scale security incident rather than a normal bug or routine maintenance, which is why downtime is longer and more disruptive than usual.

Is R6 still down?

  • Ubisoft has begun bringing Rainbow Six Siege servers back online, but players may still see queues, connection errors, or missing/rolled‑back purchases as systems stabilize.
  • The rollback mainly affects players who logged in during the exploit window (around late December 27 through December 29 UTC), while others should see little to no permanent account change.
  • Even with servers “up,” you may experience instability as Ubisoft finishes audits and further security fixes.

What you should do as a player

  • If you logged in during the exploit period and saw huge amounts of credits or strange unlocks, expect those to be reverted as part of the rollback.
  • Ubisoft has stated that players will not be banned just for spending the glitched credits, but related transactions during the affected window are being reversed.
  • As a precaution, security watchers and community posts recommend changing your Ubisoft account password and enabling two‑factor authentication, since the breach touched backend account systems.

Quick forum-style recap

“Why is R6 down?”
Because a massive exploit/hack let people get billions of R6 Credits, rare skins, and even messed with bans, forcing Ubisoft to shut down servers and the marketplace to fix and roll everything back.

TL;DR: R6 is/was down not for routine maintenance but due to a serious security breach that flooded accounts with illegitimate credits and items, so Ubisoft pulled the plug temporarily to clean up and secure the game.

Information gathered from public forums or data available on the internet and portrayed here.