Quest Diagnostics says data breach could have hit almost 12 million patients

Henrietta Brewer
June 4, 2019

AMCA has not yet given detailed or complete information about the data breach to Quest or Optum360, the company said, including which information of which individuals may have been affected.

Quest will be working with Optum360 to ensure that Quest patients are appropriately notified of the possible breach.

Quest said the information that may have been exposed included Social Security numbers and medical information, but not test results. Optum360 provides customer billing services to Quest Diagnostics.

Quest announced Monday morning American Medical Collection Agency - a billing collections service provider for Question contractor Optum360 - informed it on May 14 of "potential unauthorized activity on AMCA's web payment page".

It's unclear which patients were affected, or if there is a particular region affected.

There are multiple Quest laboratories across the CSRA.

Quest Diagnostics said the personal information of 11.9 million customers has potentially been compromised.

Information is believed to include personal information such as financial data, Social Security numbers and medical information. Since learning of the AMCA data security incident, we have suspended sending collection requests to AMCA.

Hayes said Quest is just one one of many healthcare companies to have been targeted in recent attacks, including Anthem (80 million impacted), Premera (11 million impacted) and TRICARE (4.9 million impacted).

The Federal Trade Commission has information on how to combat identity theft, what to do if an account is compromised, and how to protect personal information.

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