A cyberattack Feb. 21 began disrupting systems and services at Change Healthcare, one of the largest health care technology companies in the United States, according to and statements by , which acquired Change Healthcare in 2022.

鈥淐hange Healthcare is experiencing a cyber security issue, and our experts are working to address the matter,鈥 the company said. 鈥淥nce we became aware of the outside threat, in the interest of protecting our partners and patients, we took immediate action to disconnect our systems to prevent further impact. At this time, we believe the issue is specific to Change Healthcare and all other systems across UnitedHealth Group are operational. The disruption is expected to last at least through the day. We will provide updates as more information becomes available.鈥

For more information, see today鈥檚 AHA Cybersecurity Advisory

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