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44 disclosed this week · 26,355 on record

United Healthcare Services, Inc. Single Affiliated Covered Entity

Disclosed May 5, 2023398,319 affectedConfirmed

Official notice

The covered entity (CE), United Healthcare Services, reported that it impermissibly disclosed the protected health information (PHI) of 4,264 individuals to a business associate (BA). An employee of the BA was then subjected to an email phishing scheme that compromised this PHI. The PHI involved included names, addresses, birthdates, Social Security numbers, and health insurance and other treatment information. The CE notified HHS, affected individuals, and the media. In response to the breach, the CE offered free credit monitoring services. Staff were also retrained in its requirements to protect and secure PHI.

What is known

People affected398,319 (as reported to HHS)
DisclosedMay 5, 2023
AttackHacking
Data exposedNamesHealth
SectorInsurance · US
StatusConfirmed

Sources

Notices filed

History of this record
disclosed2026-09-25
2023-05-12 to 2023-05-05by backfillSource
disclosed2026-09-25
2023-07-28 to 2023-05-12by backfillSource
records2026-09-25
315915 to 398319by backfillSource
disclosed2026-09-25
2023-08-17 to 2023-07-28by backfillSource
disclosed2026-09-25
2023-09-07 to 2023-08-17by backfillSource
records2026-09-25
4264 to 315915by backfillSource
disclosed2026-09-25
2023-12-08 to 2023-09-07by backfillSource
Added2026-09-25
First recordedby backfillSource

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

Everything about United Healthcare Services, Inc. Single Affiliated Covered Entity