- State
- IL
- Covered entity type
- Health Plan
- Individuals affected
- 220,913
- Business associate present
- Yes
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- First seen by InfoSec Signals
- 9/23/2026
- Last seen in OCR export
- 9/23/2026
OCR description
The covered entity (CE), Health Care Service Corporation, reported that its business associate (BA) experienced a cyber-attack that compromised the protected health information (PHI) of 220,913 individuals. The PHI involved included names, addresses, email addresses, phone numbers, dates of birth, Social Security numbers, claims and financial information, and other treatment information. The CE notified HHS, affected individuals, and the media. OCR provided technical assistance regarding the HIPAA Privacy Rule.
Change history
- 9/23/2026Added to OCR's archive list
Source: U.S. Department of Health and Human Services, Office for Civil Rights, Breach Portal. Records are reproduced as published; entity names and figures are OCR's.