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Latest / California / October 2026

Marathon Health

Marathon Health notified California AG on Oct 29, 2026 of a data breach, which occurred on Aug 24, 2026. Data exposed: Postal address, Name.

Organization
Marathon Health
Source
California AG · source record
Date reported
Oct 29, 2026
Date(s) of breach
Monday, August 24, 2026
Residents affected
Not published by this source
Data exposed
Postal address Name
Notice letter
Sample notice (PDF)
First seen by BreachTally
2026-11-02 17:31 UTC

Dates and counts as filed by the organization with the agency. The breach window and the report date often differ by months.

Other filings by Marathon Health

OrganizationSourceStateReportedResidents affectedData exposed
Marathon Health Texas AG TX Oct 30, 2026 234,534 Social Security numberMedical / health informationHealth insuranceDate of birth+2
Marathon Health Massachusetts OCABR MA Oct 30, 2026 29,075 Social Security numberMedical / health information
First seen by BreachTally at 17:31 UTC on Nov 2, 2026. New filings reach paid subscribers within 30 minutes of the agency posting, with the data types and the letter. Start a 14-day free trial.

Data reproduced from a public government filing. Spot an error? Email support@breachtally.com with the record link. Corrections are applied and noted.