The Orange County Radiation Oncology Medical Group Data Breach: Reported Filing Facts
Orange County 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 data, and insurance billing details necessary for coordinating complex medical care. This security incident was officially reported to the California Attorney General in 2025, confirming that unauthorized access to systems occurred. If you received a data breach notification letter from the medical group, it indicates that your personal or protected health information may have been involved in this event. We recommend carefully reviewing the correspondence you received to understand the specific steps the organization is taking to support affected individuals and the resources available to help protect your identity.
- State
- California
- Breach date
- December 13, 2024
- Reported
- July 15, 2025
What to do if you were affected
These general steps can help limit the risk of identity theft and fraud after any data breach.
Stay alert to targeted scams
Be cautious of calls, texts, or emails that reference this breach. Legitimate organizations won't ask you to confirm sensitive details through an unsolicited message.
Keep your notification letter
Save the notice you received. It documents that your information was involved and is often needed to enroll in any credit monitoring offered or to join a related legal claim.
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