- State
- IL
- Covered entity type
- Healthcare Provider
- Individuals affected
- 2,513
- Business associate present
- No
- 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), Cornerstone Services, reported that it experienced a cyberattack that affected the protected health information (PHI) of 2,513 individuals. The PHI involved included names, dates of birth, drivers’ license and Social Security numbers, state identification numbers, passport numbers, health insurance and financial information, diagnoses, lab results, and medications. The CE notified HHS, the affected individuals, the media, and provided substitute notice. In response to the breach, the CE provided complimentary credit monitoring services and implemented additional administrative, technical, and security safeguards to better protect PHI.
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.