âIf you are asking yourself how a cyberattack on a single company could cause such massive damage, you are asking the right question,â an AHA advertorial in April 30's Washington Post, states. âThe answer, however, is stunningly simple. Over the past several years, Change Healthcareâs corporate owner, UnitedHealth Group, has acquired so many companies and spread its tentacles so far throughout the healthcare system that it has become âtoo big to fail.ââ