Granite Wellness Centers
Disclosed Feb 4, 20215 years ago15,600 affectedConfirmed
The covered entity (CE), Granite Wellness Centers, reported that it was the victim of a ransomware attack that affected the protected health information (PHI) of 15,600 individuals. The PHI involved included names, dates of birth, addresses, drivers’ license numbers, diagnoses, and other treatment information. The CE notified HHS, affected individuals, the media, and provided substitute notice. In response to the breach, the CE implemented additional administrative and technical safeguards, provided complimentary credit monitoring services to affected individuals, and retrained its workforce members to better protect its PHI.
What is known
| People affected | 15,600 (as reported to HHS) |
|---|---|
| Disclosed | Feb 4, 2021 |
| Attack | Hacking |
| Data exposed | Names, Health |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| California Attorney General breach notice: Granite Wellness Centersoag.ca.gov · Official notice | Official notice |
| HHS OCR breach report (archive, resolved): Granite Wellness Centers (Healthcare Provider, CA)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| California AGresidents of CA | Feb 4, 2021 | |
| HHS archivetotal | Feb 4, 2021 | 15,600 |
History of this record
- 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 15600 · backfill source
- 2026-09-25 · summary: empty to The covered entity (CE), Granite Wellness Centers, reported that it was the victim of a ransomware attack that affected the protected health information (PHI) of 15,600 individuals. The PHI involved included names, dates of birth, addresses · 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.