Mission Neighborhood Health Center
Disclosed Dec 19, 20259 months ago3,741 affectedConfirmed
The covered entity (CE), Mission Neighborhood Health Center, reported that a subcontractor of its business associate (BA) experienced a hacking attack that affected the protected health information (PHI) of 3,471 individuals. The PHI involved included demographic information. The CE notified HHS, the affected individuals, and the media. In response to the breach, the CE and BA implemented additional administrative, technical, and security safeguards to better protect PHI.
What is known
| People affected | 3,741 (as reported to HHS) |
|---|---|
| Disclosed | Dec 19, 2025 |
| Happened | Nov 1, 2024 |
| Attack | Hacking |
| Data exposed | Names, Health |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| California Attorney General breach notice: Mission Neighborhood Health Centeroag.ca.gov · Official notice | Official notice |
| HHS OCR breach report (archive, resolved): Mission Neighborhood Health Center (Healthcare Provider, CA)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| HHS archivetotal | Dec 19, 2025 | 3,741 |
| California AGresidents of CA | Jan 7 |
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 3741 · backfill source
- 2026-09-25 · disclosed: 2026-01-07 to 2025-12-19 · backfill source
- 2026-09-25 · summary: empty to The covered entity (CE), Mission Neighborhood Health Center, reported that a subcontractor of its business associate (BA) experienced a hacking attack that affected the protected health information (PHI) of 3,471 individuals. The PHI involv · 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.