- State
- IL
- Covered entity type
- Healthcare Provider
- Individuals affected
- 12,578
- Business associate present
- No
- Type of breach
- Hacking/IT Incident
- Location of breached information
- First seen by InfoSec Signals
- 9/23/2026
- Last seen in OCR export
- 9/23/2026
OCR description
The covered entity (CE), Sinai Health System, reported that several employees were victims of an email phishing attack that compromised the protected health information (PHI) of 12,578 individuals. The PHI involved included names, addresses, dates of birth, Social Security numbers, drivers’ license numbers, diagnoses/conditions, medications prescribed, and financial and other treatment information. The CE notified HHS, affected individuals, the media, and provided substitute notice on its website. In response to the breach, the CE implemented additional administrative and technical safeguards and provided training to its staff on cybersecurity issues.
Change history
- 9/23/2026Added 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.