Ransomware attacks on hospitals and multihospital health systems totalled 24 in 2022 but potentially affected as many as 289 hospitals, according to the report.
The largest ransomware attack on a hospital in 2022 was the Chicago-based CommonSpirit ransomware attack that compromised the data of 623,000 patients.
In 17 ransomware incidents affecting the healthcare sector, hackers stole files that contained protected health or personal information.