Jefferson County Health Center
Disclosed Jan 13, 20233 years ago115,940 affectedConfirmed
The covered entity (CE), Jefferson County Health Center, reported that it was the subject of a ransomware attack that affected the protected health information (PHI) of 53,827 individuals. The PHI involved included names, dates of birth, Social Security numbers, claims information, diagnoses, medications, and other treatment information. The CE notified HHS, the 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 to better protect its PHI.
What is known
| People affected | 115,940 (as reported to HHS) |
|---|---|
| Disclosed | Jan 13, 2023 |
| Attack | Hacking |
| Data exposed | Names, Health |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| Vermont Attorney General: 2023-08-02 Jefferson County Health Center Data Breach Notice to Consumersago.vermont.gov · Official notice | Official notice |
| HHS OCR breach report (archive, resolved): Jefferson County Health Center (Healthcare Provider, IA)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| HHS archivetotal | Jan 13, 2023 | 115,940 |
| HHS archivetotal | Jul 28, 2023 | 53,827 |
| Vermont AGresidents of VT | Aug 2, 2023 |
History of this record
- 2026-09-25 · records: 53827 to 115940 · backfill source
- 2026-09-25 · disclosed: 2023-07-28 to 2023-01-13 · backfill source
- 2026-09-25 · attack: unknown to hacking · backfill source
- 2026-09-25 · data_types: [] to ["names","health"] · backfill source
- 2026-09-25 · records_basis: empty to hhs · backfill source
- 2026-09-25 · records: empty to 53827 · backfill source
- 2026-09-25 · disclosed: 2023-08-02 to 2023-07-28 · backfill source
- 2026-09-25 · summary: empty to The covered entity (CE), Jefferson County Health Center, reported that it was the subject of a ransomware attack that affected the protected health information (PHI) of 53,827 individuals. The PHI involved included names, dates of birth, So · backfill source
- 2026-09-25 · added · backfill source
First seen 2026-09-25 (Vermont AG), confirmed by Vermont AG. Record counts are as reported. Not legal advice.