Seneca Nation Health System
Disclosed Feb 8, 202212,000 affectedConfirmed
Seneca Nation Health System, the covered entity (CE), reported that it was the victim of a cybersecurity incident that affected the protected health information (PHI) of 12,000 individuals. The PHI involved included names, addresses, dates of birth, drivers’ license and Social Security numbers, claims and financial information, diagnoses/conditions, lab results, medication information, and other treatment information. The CE notified HHS, the affected individuals, and the media. In its mitigation efforts, the CE implemented additional administrative, technical, and security safeguards to better protect its sensitive data and retrained staff.
What is known
| People affected | 12,000 (as reported to HHS) |
|---|---|
| Disclosed | Feb 8, 2022 |
| Attack | Hacking |
| Data exposed | NamesHealth |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
Notices filed
Other breaches at Seneca Nation Health System
History of this record
First seen 2026-09-25 (HHS archive), confirmed by HHS OCR. Record counts are as reported. Not legal advice.