Change Healthcare, a subsidiary of Optum Inc and part of UnitedHealth Group, faced a substantial ransomware attack that disabled many of its electronic systems. This disruption halted the ability of thousands of healthcare providers to submit claims and receive payments, causing an estimated $100 million in daily deferred patient care revenue over a period exceeding three weeks. The attack affected various operations, including insurance verification, prior authorization processes, clinical information exchange, and e-prescription services. The aftermath of the attack persisted, with reported continuing challenges and disruptions despite a hefty ransom payment allegedly made.
"id": "cha001032225",
"linkid": "change-healthcare",
"type": "Ransomware",
"date": "9/2024",
"severity": "100",
"impact": "5",
"explanation": "Attack threatening the organization’s existence"