HHS OCR report · 2017
Sinai Health System data breach
OCR report facts
- Covered entity
- Sinai Health System
- Entity type
- Healthcare Provider
- State
- Illinois
- Individuals affected
- 11,347
- Submission date
- Dec 1, 2017
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Business associate present
- No
- Status
- Archive (closed)
OCR description
The covered entity (CE), Sinai Health System, reported that several employees were the victims of an email phishing attack that affected the electronic protected health information (ePHI) of 11,347 individuals. The ePHI involved included names, addresses, dates of birth, drivers’ license information, Social Security numbers, diagnoses, lab results, medications prescribed, and health insurance information. The CE notified HHS, affected individuals, the media, and posted substitute notice on it...
Text as published on the HHS OCR breach portal.
Other reports by Sinai Health System
| Covered entity | State | Entity type | Individuals | Submitted | Type of breach | Status |
|---|---|---|---|---|---|---|
| Sinai Health System | IL | Healthcare Provider | 12,578 | Dec 13, 2019 | Hacking/IT Incident | Archive (closed) |
Frequently asked questions
How many people were affected by the Sinai Health System data breach?
The report to HHS OCR lists 11,347 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Dec 1, 2017.
What type of breach was it?
The OCR portal lists the type of breach as Hacking/IT Incident, with the breached information located in: Email.
Is the investigation still open?
No. The report is in the OCR portal archive, which holds reports where OCR has closed its review.
Is a breach notice letter from Sinai Health System legitimate?
This site cannot verify letters. Check the sender against the organisation's official website and the HHS OCR breach portal, and avoid calling numbers or clicking links only listed in an unexpected message. See our guide on what to do after a data breach notice.
Source: HHS OCR Breach Portal, OCR export October 2026. Network USA is not affiliated with HHS or Sinai Health System.