One Brooklyn Health

One Brooklyn Health operates a network of healthcare facilities in Brooklyn, New York, providing essential medical services to the local community. Its core functions include inpatient and outpatient care, emergency services, diagnostic imaging, and electronic prescription management. The organization relies heavily on electronic medical records for documenting patient information and coordinating care across its locations. Services encompass handling ambulance arrivals and maintaining communication links with emergency responders to facilitate patient intake and treatment. This network serves the Brooklyn population, delivering critical healthcare access within its operational area.

The organization faced a significant operational disruption due to a cyberattack detected on November 19, 2022. This incident forced the shutdown of core IT systems across at least three hospital facilities, severely impacting clinical operations. Access to electronic medical records was lost, requiring staff to document patient information manually and view test results directly on imaging machines. Electronic prescription capabilities were halted, causing delays in patient care, and communication failures with emergency services necessitated the rerouting of ambulances. While patient care continued using contingency protocols, the disruption was widespread. One Brooklyn Health engaged third-party cybersecurity experts and law enforcement, distributed hundreds of devices to mitigate the outage, and managed partial restoration of some clinical systems without paying ransom demands. Investigations into potential data compromise remained ongoing following the attack.