Marin Cancer Care Data Breach
Marin Cancer Care learned on or about December 8, 2025, that its computer network had been accessed without authorization. The unauthorized access occurred between November 22, 2025, and December 6, 2025. Files containing patient information, including names, medical information, and health insurance information, may have been viewed or acquired.
Signal context
First seen: Dec 8, 2025
Last updated: Jun 25, 2026
Status: Public signal
Key points
- Unauthorized network access discovered on or about December 8, 2025.
- Access occurred between November 22, 2025, and December 6, 2025.
- Patient information, medical information, and health insurance information potentially exposed.
Signal analysis
BetaThis analysis groups the signal by industry, likely incident action and impacted security area. It helps compare this signal with other published signals without treating the labels as final determinations.
Sector: Finance and Insurance
Likely country: Location not provided
Watch internet-facing systems, credential abuse and exploit activity.
- Source type: outside the affected organization
Impact area: Confidentiality
Likely asset: User or customer data
- 21 signals in the same sector
- 90 signals with the same likely impact area
- 1 signal linked to this organization/domain
External sources
Marin Cancer Care Data Breach | Wilshire Law Firmhttps://wilshirelawfirm.com/blog/marin-cancer-care/Public source from wilshirelawfirm.com.
Marin Cancer Care Data Breach Lawsuit - Class Action Uhttps://classactionu.org/current-data-breaches/Public source from classactionu.org.
Carolina Foot & Ankle Associates Notifies Patients About December 2025 Cyberattackhttps://www.hipaajournal.com/carolina-foot-ankle-associates-new-age-dermatology-marin-cancer-care-breach/Public source from hipaajournal.com.
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