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Marin Cancer Care: data breach filings, state by state

Marin Cancer Care has 2 data breach filings on record in 2 government portals. The latest was reported to Vermont AG on Apr 23, 2026, with 2 Vermont residents. Data exposed, as filed: Medical / health information.

2residents counted in 1 state (VT). Latest filing per state, last twelve months
2filings in 2 government portals
Apr 23, 2026latest filing, Vermont AG

By portal

PortalFilingsLatest reportPeople in the latest filing
Vermont AG1Apr 23, 20262 Vermont residents
California AG1Apr 23, 2026Not published

Counts are the organization's own, as filed with each agency. Most state portals count their own residents only, so no single state shows the whole incident. An organization can file more than once for the same incident, and for different ones.

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Every filing

OrganizationSourceStateReportedResidents affectedData exposed
Marin Cancer Care Vermont AG VT Apr 23, 2026 2 Medical / health information
Marin Cancer Care California AG CA Apr 23, 2026 Not published In the letter (PDF)

Data reproduced from public government filings. Each row opens the record with the agency link. Spot an error? Email support@breachtally.com with the page link. Corrections are applied and noted.