The Memorial Radiation Oncology Medical Group Data Breach: Reported Filing Facts

Memorial Radiation Oncology Medical Group is a specialized healthcare provider focused on cancer treatment and radiation therapy services. As a medical entity, the organization collects and maintains sensitive patient information, including personal identifiers, clinical health records, and insurance billing details necessary for providing specialized care. This security incident was officially reported to the California Attorney General in 2025, confirming that unauthorized access to protected systems occurred. If you received a formal data breach notification letter from the medical group, it indicates that your personal or health-related information may have been involved in this event. We recommend reviewing the letter carefully to understand the specific scope of the exposure and the identity protection services being offered to you.

State

California

Breach date

December 13, 2024

Reported

July 15, 2025