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Data breach

Quest Diagnostics breach exposes sensitive data of nearly 12 million customers

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On June 4, 2019, the New Jersey-based medical testing firm Quest Diagnostics announced that its customers’ financial and personal information was compromised in a data breach. Consumer details such as Social Security numbers, bank account information, credit card details, and medical information were released.

The incident

Between August 22, 2018 and March 30, 2019, the American Medical Collection Agency’s (AMCA) payment page was breached. Since AMCA was the third-party collection provider for Quest Diagnostics, Quest Diagnostic's patients’ data was also impacted. Fortunately, laboratory test results were not compromised. As soon as the breach was detected, AMCA reviewed its security systems with the help of a cybersecurity firm and took down its web payments page. The company notified the U.S. Securities and Exchange Commission and hired an IT security team to investigate the breach.

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