Yes. Ubisoft account got hacked. According in this screenshot, Ubisoft account got hacked and posted malicious website.
No. Don't panic. Ubisoft account maybe hacked by someone.
Firstly, don't click Ubisoft twitter account's link until hacked account has resolved and delete tweet. Secondly, spread everyone to protect themselves account gets hacked.
Look in this issue to see url: #2 or see twitter: https://twitter.com/NeseOSCorp/status/1760337539351695594
Stay safe everyone. We recommended to protect your all accounts!