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South Texas Oncology and Hematology

Disclosed Apr 19, 20242 years ago176,303 affectedConfirmed

Official notice

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 affected176,303 (as reported by the organization)
DisclosedApr 19, 2024
HappenedOct 20, 2023
AttackHacking
Data exposedNames, Health
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

WhereFiledPeople
HHS archivetotalApr 19, 2024175,195
Indiana AGresidents of INJun 13, 202454
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.

Everything about South Texas Oncology and Hematology

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