Sierra County Department of Public Health, Department of Behavioral Health
Disclosed Nov 22, 20232 years ago2,463 affectedConfirmed
The covered entity (CE), Sierra County Department of Public Health, Department of Behavioral Health, reported several employees were the subjects of an email phishing attack that affected the protected health information (PHI) of 2,463 individuals. The PHI involved included names, email information, phone numbers, tax identification numbers, Social Security numbers, dates of birth, drivers; license or government identification numbers, health insurance information, medications, and financial information. The CE notified HHS, affected individuals, the media, and provided substitute notice. In response to the breach, the CE provided complimentary credit monitoring services and implemented additional administrative, technical, and security safeguards. Staff were retrained on email security precautions.
What is known
| People affected | 2,463 (as reported to HHS) |
|---|---|
| Disclosed | Nov 22, 2023 |
| Attack | Hacking |
| Data exposed | Names, Health |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| HHS OCR breach report (archive, resolved): Sierra County Department of Public Health, Department of Behavioral Health (Healthcare Provider, CA)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| HHS archivetotal | Nov 22, 2023 | 2,463 |
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.
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