Marlboro Chesterfield Pathology
Disclosed May 7, 20251 year ago235,911 affectedConfirmed
The covered entity (CE), Marlboro-Chesterfield Pathology, P.C., reported that it experienced a hacking incident that affected the protected health information (PHI) of 235,911 individuals. The PHI involved included names, dates of birth, drivers’ license and Social Security numbers, claims and financial information, diagnoses, and lab results. The CE notified HHS, affected individuals, the media, and provided substitute notice. In response to the breach, the CE implemented additional administrative, technical, and security safeguards.
What is known
| People affected | 235,911 (as reported to HHS) |
|---|---|
| Disclosed | May 7, 2025 |
| Happened | Jan 16, 2025 |
| Attack | Hacking |
| Data exposed | Names, Health |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| Indiana Attorney General 2025 data breach report: Marlboro Chesterfield Pathologyin.gov · Official notice | Official notice |
| HHS OCR breach report (archive, resolved): Marlboro-Chesterfield Pathology (Healthcare Provider, NC)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| Indiana AGresidents of IN | May 7, 2025 | 1 |
| HHS archivetotal | May 9, 2025 | 235,911 |
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: organization to hhs · backfill source
- 2026-09-25 · records: 1462 to 235911 · backfill source
- 2026-09-25 · summary: empty to The covered entity (CE), Marlboro-Chesterfield Pathology, P.C., reported that it experienced a hacking incident that affected the protected health information (PHI) of 235,911 individuals. The PHI involved included names, dates of birth, dr · backfill source
- 2026-09-25 · added · backfill source
First seen 2026-09-25 (Indiana AG), confirmed by Indiana AG. Record counts are as reported. Not legal advice.