Common Ground Healthcare Cooperative
Disclosed Aug 12, 20224 years ago133,714 affectedConfirmed
The covered entity (CE), Common Ground Healthcare Cooperative, reported that its business associate (BA) was the victim of a breach affecting the protected health information (PHI) of 133,714 individuals. The PHI involved included names, dates of birth, addresses, Social Security numbers, and diagnostic codes. The CE notified HHS and assisted the BA in notifying the media and affected individuals. Substitute notice was also provided. In response to the breach, the CE provided complimentary credit monitoring services and implemented additional administrative safeguards.
What is known
| People affected | 133,714 (as reported to HHS) |
|---|---|
| Disclosed | Aug 12, 2022 |
| Attack | Hacking |
| Data exposed | Names, Health |
| Sector | Insurance · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| HHS OCR breach report (archive, resolved): Common Ground Healthcare Cooperative (Health Plan, WI)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| HHS archivetotal | Aug 12, 2022 | 133,714 |
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.