UnitedHealth says ‘substantial proportion’ of Americans’ information hit by cyberattack, confirms ransom payment The HillChange Healthcare Finally Admits It Paid Ransomware Hackers—and Still Faces a Patient Data Leak WIREDUnitedHealth says Change hackers stole health data on ‘substantial proportion of people in America’ TechCrunchUnitedHealth reveals hackers may have stolen data on a sizable number of Americans Star Tribune