Cooper Health System in Camden, New Jersey, has announced a data security breach that could affect the personal information of certain current and former patients. The breach was detected on March 26, 2025, following abnormal network activity linked to unauthorized access to sensitive data, including names, Social Security numbers, and medical history, occurring around May 2024. The health system has since collaborated with cybersecurity experts, reported the incident to the FBI, and implemented enhanced security measures. Although Cooper has not identified any misuse of the compromised information, it is advising those affected on steps to protect their personal data.