Every public data breach

Disclosed this week48On record26,218

48 disclosed this week · 26,218 on record

Marathon Health

Disclosed Oct 30, 20265,684,735 affectedConfirmed

Official notice

What is known

People affected5,684,735 (as reported by the organization)
DisclosedOct 30, 2026
DiscoveredSep 9, 2026
HappenedAug 24, 2026
AttackNot stated
Data exposedSocial Security numbersHealthInsuranceDates of birthAddressesNames
SectorHealthcare · US
StatusConfirmed

Sources

Official noticeoag.my.site.com
Texas Attorney General data security breach report BR-0005479: Marathon Health
Official noticeago.vermont.gov
Vermont Attorney General breach report: Marathon Health

Notices filed

Residents of TXOct 30
Texas AG234,534 people
Residents of VTOct 30
Vermont AG8,858 people
History of this record
Added2026-10-31
First recordedby dailySource

First seen 2026-10-31 (Texas AG), confirmed by Texas AG. Record counts are as reported. Not legal advice.

Everything about Marathon Health