Regal Medical Group, Inc. experienced a ransomware cyberattack resulting in unauthorized access and exfiltration of patient data. The breach occurred on or about December 1-2, 2022, and was discovered on December 8, 2022. Affected data includes names, SSNs (for some), dates of birth, addresses, diagnoses, treatment records, lab results, prescription data, radiology reports, health plan member numbers, and phone numbers. Regal notified law enforcement, HHS, and the CA AG, and offered one year of credit monitoring.