- State
- IL
- Covered entity type
- Business Associate
- Individuals affected
- 633,031
- Business associate present
- Yes
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- First seen by InfoSec Signals
- Sep 23, 2026
- Last seen in OCR export
- Oct 25, 2026
OCR description
CommonSpirit Health, the business associate (BA), reported that it experienced a ransomware attack that compromised the protected health information (PHI) of 633,031 individuals. The PHI involved included names, addresses, dates of birth, Social Security numbers, diagnoses, conditions, and other treatment information. The BA notified HHS, affected individuals, and the media. In response to the breach, the BA implemented additional administrative, technical, and security safeguards.
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.