Memorial Health System in Ohio has confirmed that threat actors accessed or acquired health information tied to about 216,000 patients prior to deploying a ransomware attack in August.
On Aug. 14, the ransomware attack was first discovered by the security team, which appeared as malware on certain servers within the MHS environment. As reported at the time, the network outage led to care diversion for emergency patients and the cancelation of urgent care surgeries and radiology exams.