Maryland’s Department of Health revealed it is recovering from a significant cyberattack and is looking to carefully reconstitute essential services.

A ransomware attack at the Maryland Department of Health crippled its systems last month and forced many of its services offline, the state agency confirmed Wednesday.

For weeks, the department described the event as a “network security breach” and offered few other details about the nature of the incident. Services ranging from the reporting of daily COVID-19 surveillance data to basic local health department functions were rendered unavailable, and officials declined to say definitively when such operations would be restored.

Due to an ongoing investigation, health department officials said they still can’t say much. They said employees noticed a downed server Dec. 4 and immediately took action, preventing unauthorized access or the acquisition of sensitive information.

Read the full story at The Baltimore Sun.