Several lawmakers questioned whether the company had become so large — with tentacles in every aspect of the nation’s medical care — that the effects of the hack were outsize.Several lawmakers questioned whether the company had become so large — with tentacles in every aspect of the nation’s medical care — that the effects of the hack were outsize.Read MoreHealth Insurance and Managed Care, United States Politics and Government, Medicine and Health, Hospitals, Cyberattacks and Hackers, Antitrust Laws and Competition Issues, Optum Inc, Senate, Senate Committee on Finance, UnitedHealth Group Inc, Wyden, Ron, Warren, Elizabeth, Blackburn, MarshaNYT > Health