Every public data breach

Disclosed this week47On record26,367

47 disclosed this week · 26,367 on record

UnitedHealth Group health plan single affiliated covered entity

2 breaches40K affected in allHealthcare

Hacking breachHacking exposed names and health records. Reported to the HHS archive.21K affectedInsuranceUSMay 8, 2019Insider breachInsider exposed names and health records. Reported to the California AG.19K affectedHealthcareUSApr 27, 2010
About

Every breach here links to its sources and official notices. Across Glyph: lawsuits, incidents and outages.

disclosed2026-09-25
UnitedHealth Group health plan single affiliated covered entity, 2010-04-272010-04-27
disclosed2026-09-25
UnitedHealth Group health plan single affiliated covered entity, 2010-04-272010-06-04
disclosed2026-09-25
UnitedHealth Group health plan single affiliated covered entity, 2010-04-272012-02-01
attack2026-09-25
UnitedHealth Group health plan single affiliated covered entity, 2010-04-27insider
data_types2026-09-25
UnitedHealth Group health plan single affiliated covered entity, 2010-04-27["names","health"]
records_basis2026-09-25
UnitedHealth Group health plan single affiliated covered entity, 2010-04-27hhs
records2026-09-25
UnitedHealth Group health plan single affiliated covered entity, 2010-04-2719100
summary2026-09-25
UnitedHealth Group health plan single affiliated covered entity, 2010-04-27\N
records2026-09-25
UnitedHealth Group health plan single affiliated covered entity, 2019-05-0820536
disclosed2026-09-25
UnitedHealth Group health plan single affiliated covered entity, 2019-05-082019-05-08
disclosed2026-09-25
UnitedHealth Group health plan single affiliated covered entity, 2019-05-082020-01-22
Added2026-09-25
UnitedHealth Group health plan single affiliated covered entity, 2019-05-08
Added2026-09-25
UnitedHealth Group health plan single affiliated covered entity, 2010-04-27
Added2026-09-25
UnitedHealth Group health plan single affiliated covered entity