UnitedHealth Group reported April 22 that “a substantial proportion of people in America” could have had their protected health information (PHI) or personally identifiable information (PII) exposed in the now-famous ransomware attack on Change Healthcare.  SC Media has reported that Change Healthcare, which is owned by UnitedHealth Group subsidiary Optum, suffered a cyberattack on Feb. 21, leading to widespread operational disruptions at hospitals and pharmacies across the United States.

Source: SC Magazine