Dean Health Service
Disclosed Jul 28, 20233 years ago1,027 affectedConfirmed
Dean Health Service Company, the business associate (BA), reported that its subcontractor experienced a cyber-attack that compromised the protected health information (PHI) of 1,027 individuals. The PHI involved included names, addresses, dates of birth, social security numbers, claims information, and healthcare provider information. The BA notified HHS, affected individuals, the media, and posted substitute notice on its website. In response to the breach the BA and its subcontractor implemented additional administrative, technical, and security safeguards.
What is known
| People affected | 1,027 (as reported to HHS) |
|---|---|
| Disclosed | Jul 28, 2023 |
| Attack | Hacking |
| Data exposed | Names, Health |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| HHS OCR breach report (archive, resolved): Dean Health Service (Business Associate, MN)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| HHS archivetotal | Jul 28, 2023 | 1,027 |
History of this record
- 2026-09-25 · added · backfill source
First seen 2026-09-25 (HHS archive), confirmed by HHS OCR. Record counts are as reported. Not legal advice.