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47 disclosed this week · 26,367 on record

Sinai Health System

Disclosed Dec 13, 201912,578 affectedConfirmed

Official notice

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.

What is known

People affected12,578 (as reported to HHS)
DisclosedDec 13, 2019
AttackHacking
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

Other breaches at Sinai Health System

History of this record
Added2026-09-25
First recordedby backfillSource

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

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