Eau Claire Cooperative Health
Disclosed Jul 29, 20215 years ago3,755 affectedConfirmed
The covered entity (CE), Eau Claire Cooperative Health dba Cooperative Health, reported that its business associate (BA) experienced a cyber-attack that compromised the electronic protected health information (ePHI) of 3,755 individuals. The ePHI involved included names, dates of birth, prescription information, and medical record numbers. The BA notified affected individuals and the media; the CE notified OCR. In its mitigation efforts, the BA implemented additional administrative, technical, and security safeguards to better protect ePHI. OCR provided technical assistance to the CE regarding the HIPAA Breach Notification and Privacy Rules.
What is known
| People affected | 3,755 (as reported to HHS) |
|---|---|
| Disclosed | Jul 29, 2021 |
| Attack | Hacking |
| Data exposed | Names, Health |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| HHS OCR breach report (archive, resolved): Eau Claire Cooperative Health (Healthcare Provider, SC)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| HHS archivetotal | Jul 29, 2021 | 3,755 |
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.