LatestStatesCompaniesPricingAPIData Start free trial

Latest / Texas / October 2026

Marathon Health

Marathon Health notified Texas AG on Oct 30, 2026 of a data breach affecting 234,534 Texas residents and 5,684,735 people in total, which occurred on Aug 24, 2026. Data exposed: Social Security number, Medical / health information, Health insurance, Date of birth, Postal address, Name.

All 4 filings by Marathon Health, state by state · Case file (dates, days to notice against the statute, what the letter offers, prior incidents)

Organization
Marathon Health
Source
Texas AG · source record
Date reported
Oct 30, 2026
Date(s) of breach
2026-08-24
Residents affected
234,534 (Texas residents)
Affected in total
5,684,735 individuals, as reported in this filing
Data exposed
Social Security number Medical / health information Health insurance Date of birth Postal address Name
Notice letter
Not available
Days to notice
67 days from the end of the breach window (Aug 24, 2026, no discovery date in the letter) to the Texas record (Oct 30, 2026). Statute: 60 days from determination that the breach occurred (Tex. Bus. & Com. Code § 521.053).
First seen by BreachTally
2026-10-30 15:31 UTC

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

First seen by BreachTally at 15:31 UTC on Oct 30, 2026. New filings reach paid subscribers within 30 minutes of the agency posting, with the count, the data exposed and the letter. Start a 14-day free trial. We email you two days before the first charge and you cancel in one click.
Not today? Take the free Monday digest: the week's filings by state and the largest by people affected. Once a week.

Information compromised, as listed

Entity type as filed with the AG: Healthcare – Medical Provider. Information involved: Name of individual; Address; Social Security Number Information; Medical Information; Health Insurance Information; Date of Birth. Discovered 2026-09-09. 5,684,735 individuals affected in total. Notice method: U.S. Mail.

Other filings by Marathon Health

OrganizationSourceStateReportedResidents affectedData exposed
Marathon Health Vermont AG VT Oct 30, 2026 8,858 Social Security numberMedical / health information
Marathon Health Massachusetts OCABR MA Oct 30, 2026 29,075 Social Security numberMedical / health information
Marathon Health California AG CA Oct 29, 2026 Not published Postal addressName

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