The University Hospital Center (CHU) of Rouen was hit by the malware last week, the ransomware had a severe impact on the operations during the weekend. Medical staff at the hospital were not able to use the PCs and servers that were crippled by ransomware, they returned to the old-fashioned method of paper and pencil. The management of the hospital did not reveal details of the attack such as the family of ransomware that hit its systems and the way it infected them.”]
Source: https://securityaffairs.co/wordpress/94264/cyber-crime/rouen-hospital-ransomware-attack.html