Every public data breach

47 disclosed this week · 26,367 on record

Allegheny County

Disclosed Jul 28, 2023689,686 affectedConfirmed

Official notice

Allegheny County, the covered entity (CE), reported that its business associate (BA) experienced a cyber-attack that compromised the protected health information (PHI) of 689,686 individuals. The PHI involved included names, addresses, phone numbers, Social Security numbers, dates of birth, drivers’ license numbers, diagnoses, claims information, and other treatment information. The CE notified HHS, affected individuals, the media, and posted substitute notice on its website. In response to the incident, the CE and BA strengthened its administrative, technical, and security safeguards to better protect PHI.

What is known

People affected689,686 (as reported to HHS)
DisclosedJul 28, 2023
AttackHacking
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

Other breaches at Allegheny County

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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