---
title: "Quest Diagnostics Breach: Latest News"
description: "Quest Diagnostics Breach: Latest News"
image: https://blog.360smartnetworks.com/hubfs/Imported_Blog_Media/GettyImages-1020375664.jpg
---

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# Quest Diagnostics Breach: Latest News

[Marius Nel](https://blog.360smartnetworks.com/blog/author/ulisticadmin)

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**Are You One Of Many Affected By The Quest Diagnostics Breach?**

**Financial & Medical Information of 12 Million Exposed**

![Quest Data Breach](https://blog.360smartnetworks.com/hubfs/Imported_Blog_Media/GettyImages-1020375664.jpg)

Quest Diagnostics reports that almost 12 million people could have been affected by a data breach.

On Monday, June 3, 2019, [Quest Diagnostics said that American Medical Collection Agency (AMCA](http://newsroom.questdiagnostics.com/AMCADataSecurityIncident)), a billing collections provider they work with, informed them that an unauthorized user had managed to obtain access to AMCA systems.

Quest Diagnostics is one of the largest blood-testing providers in the U.S.

Anyone who has ever been a patient at a [Quest Diagnostics](https://newyork.cbslocal.com/tag/quest-diagnostics/) medical lab could be affected by the breach.

AMCA provides billing collection services to Optum360, which is a Quest contractor. AMCA first notified Quest about the breach on May 14th. Quest reports said that they are no longer using AMCA and that they are notifying affected patients about the data exposure.

The information included in the breached system includes:

- Bank account information
- Medical information
- Credit card information
- Social Security Numbers
- Other personal information

In its filing, Quest reported:

“Quest Diagnostics takes this matter very seriously and is committed to the privacy and security of patients’ personal, medical and financial information.”

**What Should You Do?**

Anyone who was affected by the data leak should freeze their credit report to prevent criminals from opening credit card accounts in their name. They should also be concerned that their Social Security numbers were exposed.

If you believe that your information has been leaked, you can contact Quest Diagnostics’ customer service at 1 (866) 697-8378 or on [their contact page](https://secure.questdiagnostics.com/ViewsFlash/servlet/viewsflash?cmd=page&pollid=contactus!patient_inquiry).

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