UnitedHealth Group Inc. has revealed that personal information of a potentially vast number of Americans may have been compromised in a recent cyberattack on its Change Healthcare business. While the company has yet to identify the full extent of the breach, it has confirmed that screenshots containing protected health information were posted on the dark web. UnitedHealth is actively investigating the situation and providing resources to affected individuals, including free credit monitoring and identity theft protection. The attack, which impacted insurance claim processing, has prompted ongoing efforts to restore services and mitigate the financial burden on healthcare providers.