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Humana

Disclosed Jun 15, 20233 years ago12,539 affectedConfirmed

Official notice

The covered entity (CE), Humana, reported that an unauthorized individual gained access to the protected health information (PHI) of 12,339 individuals using data it obtained elsewhere. The type of PHI affected included names, addresses, dates of birth, diagnoses, and other treatment information. The CE notified HHS and the affected individuals. In response to the breach, Humana implemented additional administrative and technical safeguards.

What is known

People affected12,539 (as reported to HHS)
DisclosedJun 15, 2023
DiscoveredSep 22, 2023
HappenedJul 31, 2023
AttackHacking
Data exposedNames, Health
SectorFinance · US
StatusConfirmed

Sources

Source
California Attorney General breach notice: Humanaoag.ca.gov · Official notice
Washington Attorney General breach notice: Humanaatg.wa.gov · Official notice
Delaware DOJ breach notice: Humanaattorneygeneral.delaware.gov · Official notice
HHS OCR breach report (archive, resolved): Humana (Health Plan, KY)ocrportal.hhs.gov · Official notice

Notices filed

WhereFiledPeople
HHS archivetotalJun 15, 20239,372
Delaware DOJresidents of DESep 22, 20236,603
California AGresidents of CADec 13, 2023
Washington AGresidents of WADec 15, 202333,193
HHS archivetotalDec 21, 20232,844
HHS archivetotalJan 22, 202412,539
HHS archivetotalFeb 6, 20246,440
HHS archivetotalFeb 8, 202412,339

Other breaches at Humana

BreachAffected
Disclosed Apr 29, 2025Apr 29, 20251 year ago16K
Disclosed Sep 9, 2021Sep 9, 20215 years agoHacking23K
Disclosed Aug 19, 2020Aug 19, 20206 years agoLost or stolen device65K
Disclosed Dec 31, 2018Dec 31, 20187 years agoInsider5,569
Disclosed Nov 21, 2017Nov 21, 20178 years agoInsider6,836
Disclosed May 23, 2014May 23, 201412 years agoUnknown
History of this record
  • 2026-09-25 · disclosed: 2023-09-22 to 2023-06-15 · backfill source
  • 2026-09-25 · records: 12339 to 12539 · backfill source
  • 2026-09-25 · data_types: ["names"] to ["names","health"] · backfill source
  • 2026-09-25 · records_basis: empty to hhs · backfill source
  • 2026-09-25 · records: empty to 12339 · backfill source
  • 2026-09-25 · summary: empty to The covered entity (CE), Humana, reported that an unauthorized individual gained access to the protected health information (PHI) of 12,339 individuals using data it obtained elsewhere. The type of PHI affected included names, addresses, da · backfill source
  • 2026-09-25 · data_types: [] to ["names"] · backfill source
  • 2026-09-25 · disclosed: 2023-12-13 to 2023-09-22 · backfill source
  • 2026-09-25 · sector: other to finance · backfill source
  • 2026-09-25 · attack: unknown to hacking · backfill source
  • 2026-09-25 · discovered: empty to 2023-09-22 · backfill source
  • 2026-09-25 · added · backfill source

First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.

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