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Cancer Centers of Southwest Oklahoma, LLC
ArchivedSubmitted 06/04/2021
Updated 15 hours ago ()
- State
- OK
- Covered entity type
- Healthcare Provider
- Individuals affected
- 8,000
- Business associate present
- Yes
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Electronic Medical Record, Network Server
- First seen by InfoSec Signals
- Sep 23, 2026
- Last seen in OCR export
- Oct 25, 2026
OCR description
The covered entity (CE), Cancer Centers of Southwest Oklahoma, LLC, reported that its business associate (BA) experienced a ransomware attack that compromised the electronic protected health information (ePHI) of 6,253 individuals. The ePHI involved included names, addresses, dates of birth, driver’s license numbers, Social Security numbers, medications prescribed, lab results, and diagnoses/conditions. The CE notified HHS, affected individuals, and the media.
Change history
- Sep 23, 2026Added to OCR's archive list
Source: HHS OCR Breach Portal, U.S. Department of Health and Human Services, Office for Civil Rights about this source
Records are reproduced as published; entity names and figures are OCR's.