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UHG Optum was forced to shut down IT systems and various services after a cyberattack by “nation-state” hackers on the Change Healthcare platform.
United Health Group (UHG) is a health insurance company with a presence across all 50 US states. The organization is the world's largest healthcare company by revenue ($324.2 billion in 2022), employing 440,000 people worldwide. Its subsidiary, Optum Solutions, operates the Change Healthcare platform, which is the largest payment exchange platform between doctors, pharmacies, healthcare providers, and patients in the US healthcare system.
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