BusinessTechCrunch
Two months after hackers broke into Change Healthcare systems stealing and then encrypting company data, it’s still unclear how many Americans were impacted by the cyberattack. Last month, Andrew Witty, the CEO of Change Healthcare’s parent company UnitedHealth Group, said that the stolen files include the personal health information of “a substantial proportion of people in America.” On Wednesday, during a House hearing, when pushed to give a more definitive answer, Witty testified that the breach impacted “I think, maybe a third [of Americans] or somewhere of that level.”