Ryuk victims have a small chance of getting free decryption
https://www.bleepingcomputer.com/news/security/dch-hospital-pays-ryuk-ransomware-for-decryption-key/
DCH hospitals in Alabama have decided to the pay ransom for the Ryuk Ransomware in order to receive a decryptor and get their computer systems back up and running.
On October 1st, 2019, DCH Health System, which includes the DCH Regional Medical Center, Northport Medical Center, and Fayette Medical Center in West Alabama's Tuscaloosa, Northport, and Fayette, were affected by a Ryuk ransomware attack that forced them to shut down their computer systems and to stop accepting new non-emergency patients.