Alta Resources
Disclosed Dec 20, 20241 year ago37,363 affectedConfirmed
The covered entity (CE), Alta Resources Corporation, reported that it experienced a ransomware attack that affected the protected health information (PHI) of approximately 12,162 individuals. The PHI involved names, addresses, dates of birth, drivers’ license and social security numbers, and diagnoses and conditions. The CE notified HHS, the affected individuals, the media, and provided substitute notice. In its mitigation efforts, the CE provided complimentary credit monitoring services and implemented additional technical safeguards.
What is known
| People affected | 37,363 (as reported by the organization) |
|---|---|
| Disclosed | Dec 20, 2024 |
| Happened | Nov 18, 2023 |
| Attack | Hacking |
| Data exposed | Names, Health |
| Sector | Insurance · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| California Attorney General breach notice: Alta Resourcesoag.ca.gov · Official notice | Official notice |
| Vermont Attorney General: 2024-12-20 Alta Resources Data Breach Notice to Consumersago.vermont.gov · Official notice | Official notice |
| Indiana Attorney General 2025 data breach report: Alta Resourcesin.gov · Official notice | Official notice |
| HHS OCR breach report (archive, resolved): Alta Resources (Health Plan, WI)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| California AGresidents of CA | Dec 20, 2024 | |
| Vermont AGresidents of VT | Dec 20, 2024 | |
| Indiana AGresidents of IN | Dec 20, 2024 | 763 |
| HHS archivetotal | Dec 20, 2024 | 12,162 |
History of this record
- 2026-09-25 · sector: other to insurance · backfill source
- 2026-09-25 · attack: unknown to hacking · backfill source
- 2026-09-25 · data_types: [] to ["names","health"] · backfill source
- 2026-09-25 · summary: empty to The covered entity (CE), Alta Resources Corporation, reported that it experienced a ransomware attack that affected the protected health information (PHI) of approximately 12,162 individuals. The PHI involved names, addresses, dates of birt · backfill source
- 2026-09-25 · records_basis: empty to organization · backfill source
- 2026-09-25 · records: empty to 37363 · backfill source
- 2026-09-25 · source: empty to https://ago.vermont.gov/document/2024-12-20-alta-resources-data-breach-notice-consumers · backfill source
- 2026-09-25 · added · backfill source
First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.