- State
- MO
- Covered entity type
- Healthcare Provider
- Individuals affected
- 15,680
- Business associate present
- Yes
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Other
- First seen by InfoSec Signals
- Sep 23, 2026
- Last seen in OCR export
- Oct 25, 2026
OCR description
The covered entity (CE), Cornerstones of Care, reported that its business associate (BA) experienced a ransomware attack affecting the electronic protected health information (ePHI) of approximately 15,680 individuals. The ePHI involved included names, addresses, dates of birth, Social Security numbers, and treatment information. The CE notified HHS, affected individuals, the media, and provided substitute notice.
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.