Healthcare Provider · Archived
Marin Cancer Care
27,332 individuals · submitted February 6, 2026
About this report
The covered entity (CE), Marin Cancer Care, reported that it experienced a cybersecurity incident that affected the protected health information (PHI) of 27,332 individuals. The PHI involved included demographic, clinical, and financial information. The CE notified HHS, affected individuals, and provided media notice. In response to the breach, the CE implemented additional administrative and technical safeguards.
Summary as published by the HHS Office for Civil Rights.
- Organization
- Marin Cancer Care
- State
- CA
- Entity type
- Healthcare Provider
- Individuals affected
- 27,332
- Submission date
- February 6, 2026
- Breach type
- Hacking/IT Incident
- Location of information
- Network Server
- Business associate present
- No
- OCR status
- Archived
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