Dallas County
Disclosed Apr 14, 20233 years ago201,404 affectedConfirmed
The covered entity (CE), Dallas County, reported that it experienced a ransomware incident that affected the protected health information (PHI) of 201,404 individuals. The PHI involved included clinical, demographic, and financial information. The CE notified HHS, the affected individuals and HHS. In response to the breach, the CE implemented additional administrative, technical, and security safeguards to better protect its PHI.
What is known
| People affected | 201,404 (as reported by the organization) |
|---|---|
| Disclosed | Apr 14, 2023 |
| Happened | Oct 16, 2023 |
| Attack | Hacking |
| Data exposed | Names, Health |
| Sector | Government · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| Vermont Attorney General: 2024-07-10 Dallas County Data Breach Notice to Consumersago.vermont.gov · Official notice | Official notice |
| Indiana Attorney General 2024 data breach report: Dallas Countyin.gov · Official notice | Official notice |
| HHS OCR breach report (archive, resolved): Dallas County (Healthcare Provider, TX)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| HHS archivetotal | Apr 14, 2023 | 501 |
| HHS archivetotal | Dec 18, 2023 | 201,404 |
| Vermont AGresidents of VT | Jul 10, 2024 | |
| Indiana AGresidents of IN | Jul 10, 2024 | 32 |
History of this record
- 2026-09-25 · disclosed: 2023-12-18 to 2023-04-14 · backfill source
- 2026-09-25 · attack: unknown to hacking · backfill source
- 2026-09-25 · data_types: [] to ["names","health"] · backfill source
- 2026-09-25 · disclosed: 2024-07-10 to 2023-12-18 · backfill source
- 2026-09-25 · summary: empty to The covered entity (CE), Dallas County, reported that it experienced a ransomware incident that affected the protected health information (PHI) of 201,404 individuals. The PHI involved included clinical, demographic, and financial informati · backfill source
- 2026-09-25 · records_basis: empty to organization · backfill source
- 2026-09-25 · records: empty to 201404 · backfill source
- 2026-09-25 · occurred: empty to 2023-10-16 · 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.