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Sinai Health System

Disclosed Dec 1, 20178 years ago11,347 affectedConfirmed

Official notice

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 its website. The CE also provided affected individuals with complimentary identity protection and credit monitoring services and established a toll-free phone number for questions or concerns. In response to the breach, the CE revised its privacy and cybersecurity policies and procedures and retrained its staff on the proper methods of recognizing and responding to fraudulent email communications. In addition, the CE implemented additional administrative, technical, and security safeguards to better protect its ePHI. OCR obtained assurances that the CE implemented the corrective actions noted.

What is known

People affected11,347 (as reported to HHS)
DisclosedDec 1, 2017
AttackHacking
Data exposedNames, Health
SectorHealthcare · US
StatusConfirmed

Sources

Source
HHS OCR breach report (archive, resolved): Sinai Health System (Healthcare Provider, IL)ocrportal.hhs.gov · Official notice

Notices filed

WhereFiledPeople
HHS archivetotalDec 1, 201711,347

Other breaches at Sinai Health System

BreachAffected
Disclosed Dec 13, 2019Dec 13, 20196 years agoHacking13K
History of this record
  • 2026-09-25 · added · backfill source

First seen 2026-09-25 (HHS archive), confirmed by HHS OCR. Record counts are as reported. Not legal advice.

Everything about Sinai Health System

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