South Texas Oncology and Hematology
Disclosed Apr 19, 20242 years ago176,303 affectedConfirmed
The covered entity (CE), South Texas Oncology and Hematology, reported that it experienced a ransomware incident that affected the protected health information (PHI) of 175,195 individuals. The PHI involved included names, addresses, dates of birth, Social Security numbers, diagnoses/conditions, lab results, medications, and other treatment information. The CE notified HHS, affected individuals, the media, and provided substitute notice. In response to the breach, the CE provided complimentary credit monitoring services to the affected individuals and implemented additional administrative, technical, and security safeguards, and retrained workforce members to better protect its PHI.
What is known
| People affected | 176,303 (as reported by the organization) |
|---|---|
| Disclosed | Apr 19, 2024 |
| Happened | Oct 20, 2023 |
| Attack | Hacking |
| Data exposed | Names, Health |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| Indiana Attorney General 2024 data breach report: South Texas Oncology and Hematologyin.gov · Official notice | Official notice |
| HHS OCR breach report (archive, resolved): South Texas Oncology and Hematology (Healthcare Provider, TX)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| HHS archivetotal | Apr 19, 2024 | 175,195 |
| Indiana AGresidents of IN | Jun 13, 2024 | 54 |
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 · disclosed: 2024-06-13 to 2024-04-19 · backfill source
- 2026-09-25 · summary: empty to The covered entity (CE), South Texas Oncology and Hematology, reported that it experienced a ransomware incident that affected the protected health information (PHI) of 175,195 individuals. The PHI involved included names, addresses, dates · 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.