Accellion Breach Tally for Centene’s Subsidiaries: 1.3M Patients Impacted

Health IT Security

Jessica Davis

The Department of Health and Human Services’ breach reporting tool shows over 1.3 million patients of Centene subsidiaries were impacted by the massive Accellion File Transfer Appliance vulnerability hack and subsequent data exfiltration, first reported in early February.

The incident was reported to HHS in four separate filings, affecting 523,709 Health Net of California patients, 26,637 patients of Health Net Life Insurance Company, 686,556 patients of Health Net Community Solutions, and 80,138 California Health & Wellness (CHW) patients. All reported entities are subsidiaries of Centene.

The notices show the attackers had access to the entities’ information from January 7 until January 25. The impacted data included contact details, dates of birth, insurance ID numbers, and health information, such as treatments and medical conditions.

As previously reported...

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