Darius Tahir and Bernard J. Wolfson and Daniel Chang

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Biden Team, UnitedHealth Struggle to Restore Paralyzed Billing Systems After Cyberattack

The cyberattack on a unit of UnitedHealth Group’s Optum division is the worst on the health care industry in U.S. history, hospitals say. Providers struggling to get paid for care say the response by the insurer and the Biden administration has been inadequate.