Health Data Breach Tracker/CT

Healthcare Provider · Archived

Yale New Haven Health System

5,556,702 individuals · submitted April 11, 2025

About this report

The covered entity (CE), Yale New Haven Health System, reported that it experienced a hacking incident that affected the protected health information (PHI) of 5,556,702 individuals. The PHI involved included names, dates of birth, addresses, and Social Security numbers. The CE notified HHS, affected individuals, the media, and implemented substitute notice. In response to the breach, the CE implemented additional administrative, technical, and security safeguards.

Summary as published by the HHS Office for Civil Rights.

Organization
Yale New Haven Health System
State
CT
Entity type
Healthcare Provider
Individuals affected
5,556,702
Submission date
April 11, 2025
Breach type
Hacking/IT Incident
Location of information
Network Server
Business associate present
No
OCR status
Archived

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