Allegheny County Pennsylvania
Disclosed Jul 28, 20233 years ago967,690 affectedConfirmed
Allegheny County, the business associate (BA), reported that it experienced a cyber-attack that compromised the protected health information (PHI) of 1,505 individuals. The PHI involved included names, birthdates, health insurance information, and other treatment information. The BA notified HHS, affected individuals, the media, and posted substitute notice on its website. In its mitigation efforts, the BA implemented additional administrative and technical safeguards to better protect PHI.
What is known
| People affected | 967,690 (as reported by the organization) |
|---|---|
| Disclosed | Jul 28, 2023 |
| Happened | May 28, 2023 |
| Attack | Hacking |
| Data exposed | Names, Health |
| Sector | Government · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| Vermont Attorney General: 2023-07-28 Allegheny County Pennsylvania Data Breach Notice to Consumersago.vermont.gov · Official notice | Official notice |
| Indiana Attorney General 2023 data breach report: Allegheny County, Pennsylvaniain.gov · Official notice | Official notice |
| HHS OCR breach report (archive, resolved): Allegheny County, Pennsylvania (Business Associate, PA)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| Vermont AGresidents of VT | Jul 28, 2023 | |
| Indiana AGresidents of IN | Jul 28, 2023 | 42 |
| HHS archivetotal | Sep 22, 2023 | 1,505 |
History of this record
- 2026-09-25 · attack: unknown to hacking · backfill source
- 2026-09-25 · data_types: [] to ["names","health"] · backfill source
- 2026-09-25 · summary: empty to Allegheny County, the business associate (BA), reported that it experienced a cyber-attack that compromised the protected health information (PHI) of 1,505 individuals. The PHI involved included names, birthdates, health insurance informati · backfill source
- 2026-09-25 · records_basis: empty to organization · backfill source
- 2026-09-25 · records: empty to 967690 · backfill source
- 2026-09-25 · occurred: empty to 2023-05-28 · backfill source
- 2026-09-25 · added · backfill source
First seen 2026-09-25 (Vermont AG), confirmed by Vermont AG. Record counts are as reported. Not legal advice.