Every public data breach

47 disclosed this week · 26,367 on record

UnitedHealthcare Insurance

Disclosed May 1, 202416,665 affectedConfirmed

Official notice

The covered entity (CE), UnitedHealthcare Insurance Company, reported that an employee of its business associate (BA) mailed the protected health information (PHI) of 16,665 individuals to the wrong recipients. The CE notified HHS, the affected individuals, and the media. In response to the breach, the CE and BA implemented additional administrative, technical, and security safeguards. Staff were retrained.

What is known

People affected16,665 (as reported to HHS)
DisclosedMay 1, 2024
AttackInsider
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

Other breaches at UnitedHealthcare Insurance

History of this record
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.

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