Millions of Quest Diagnostics and LabCorp records have been breached
American Medical Collection Agency (AMCA), a billing processor for Quest Diagnostics and LabCorp, suffered a breach, compromising records of 12 million patients of Quest Diagnostics and 7.7 million records of LabCorp.
A June 3, 2019 filing with the U.S. Securities and Exchange Commission (SEC) by Quest, and a similar June 4 SEC filing by LabCorp, revealed that between August 1, 2018 and March 30, 2019 an unauthorized user had access to AMCA’s system that contained information that AMCA had received from various entities, including Quest Diagnostics, and information that AMCA collected itself. The information on AMCA’s affected system included financial information (e.g., credit card numbers and bank account information), medical information and other personal information (e.g., Social Security Numbers).
In response to this incident, both Quest Diagnostics and LabCorp suspended sending collection requests to AMCA.
Read more about it here.