Analyst Research on WellPoint and Unitedhealth Group - Staring at a Dark Horizon . August 26, 2010: 09:18 AM ET.

UnitedHealth Group and its subsidiary Change Healthcare will be investigated by a federal agency over last month's cyber ... reportedly posted about the attack on the dark web, ... Key Background.

UnitedHealth says files with personal information that could cover a “substantial portion of people in America” may have been taken in the cyberattack earlier this year on its Change ...