Last year, the company faced a hack of a technology unit that disrupted payments to many U.S. health providers for months, and the killing of its top insurance-arm executive.

At the start of 2025, Witty set a typically optimistic tone, after a difficult year that included both a devastating hack of a technology unit and the killing of the leader of UnitedHealthcare.

UnitedHealth Group says it is cooperating with federal criminal and civil investigations involving its market-leading Medicare business.

On May 1, UnitedHealth Group CEO Andrew Witty testified before the Senate Finance Committee, disclosing that MFA was not implemented at the time of the Change hack.

UnitedHealth CEO Andrew Witty testifies before a Senate Finance Committee hearing about a recent cyberattack at the company's technology unit and its impact on patients and providers, in this ...