Back to the register

Quest Diagnostics

ArchivedSubmitted 12/12/2016
State
NJ
Covered entity type
Healthcare Provider
Individuals affected
34,055
Business associate present
No
Type of breach
Hacking/IT Incident
Location of breached information
Network Server
First seen by InfoSec Signals
9/23/2026
Last seen in OCR export
9/23/2026

OCR description

The covered entity (CE), Quest Diagnostics, reported that it was the victim of a cyber-attack that affected the electronic protected health information (ePHI) of 34,055 individuals. The ePHI involved included names, dates of birth, telephone numbers, and lab results. The CE notified HHS, affected individuals, and the media. In response to the breach, the CE implemented additional administrative and technical safeguards to better protect its ePHI. OCR obtained assurances that the CE implemented the corrective actions noted.

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.

Your cookie choices
We use essential cookies to run this site, and, only with your consent, an advertising cookie from Google to measure whether our ads lead to sign-ups and subscriptions. See our for details.