Massive Quest Diagnostics data breach impacts 12 million patients

A massive data breach has struck Quest Diagnostics and the information of up to 11.9 million patients has potentially been compromised.

On Monday, the US clinical laboratory said that American Medical Collection Agency (AMCA), a billing collections provider that works with Quest, informed the company that an unauthorized user had managed to obtain access to AMCA systems.

Through the Quest contractor, the unknown individual was able to access — and potentially steal — Quest patient data including Social Security numbers, medical information, and financial data.

Quest has not revealed what forms of financial data have been exposed, such as whether card numbers or security codes are included, or whether or not encryption was in place to protect this information.

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Source: ZDNet