Ragnarok ransomware gang appears to have called it quits and released the master key that can decrypt files locked with their malware.
The threat actor did not leave a note explaining the move; all of a sudden, they replaced all the victims on their leak site with a short instruction on how to decrypt files
The leak site has been stripped of visual elements. All that remains there is the brief text linking to an archive containing the master key and the accompanying binaries for using it.
Source: Bleeping Computer