Some U.S. community health centers still affected 3 months later by UnitedHealth hack

Change Healthcare, a unit of the largest U.S. health insurer, processes about 50% of all medical claims in the U.S., for around 900,000 doctors, 33,000 pharmacies, 5,500 hospitals and 600 labs. It also runs other support services like call centers.

All were shut temporarily after the Feb. 21 ransomware attack and some, like the medical claims system, took one or two months to restart.

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