The investigation will look into the details of the breach that affected 2,584 people at Johns Hopkins Health System and 2,975 people at Columbia, Md.-based Johns Hopkins Howard County General Hospital, according to the publication.
The breach occurred due to hackers targeting a software vulnerability called MOVEit, for which Russian-backed ransomware gang Clop claimed responsibility.
The attack on MOVEit has also affected multiple hospitals and health systems across the U.S., including Dallas-based UT Southwestern Medical Center and St. Petersburg, Fla.-based Johns Hopkins All Children’s Hospital.