The Ryuk Ransomware is  targeting organizations globally with warnings by UK & USA cybersecurity government agencies, as outlined in the 9 page PDF:

https://www.ncsc.gov.uk/news/ryuk-advisory

https://www.us-cert.gov/ncas/current-activity/2019/06/28/ncsc-releases-advisory-ryuk-ransomware

Ryuk was first seen in August 2018 and has been responsible for multiple attacks globally. Ryuk is a targeted ransomware where demands are set according to the victim’s perceived ability to pay. The Ryuk ransomware is often not observed until a period of time after the initial infection – ranging from days to months – which allows the actor time to carry out reconnaissance inside an infected network, identifying and targeting critical network systems and therefore maximizing the impact of the attack