US health department opens probe into UnitedHealth hack

(Reuters) -The U.S. Department Of Health and Human Services has opened an investigation into the cyberattack at UnitedHealth Group's Change Healthcare unit that disrupted pharmacy refills and insurance claims processing. The investigation, announced on Wednesday, is the first government probe into the Feb. 21 cyberattack that has jolted the U.S. health system as the division processes about 50% of medical claims in the country. The probe will focus on identifying the extent of the possible breach, and compliance by UnitedHealth and the unit with federal law that protects sensitive patient health information, the HHS said. UnitedHealth said it would cooperate with the investigation. "Our immediate focus is to restore our systems, protect data and support those whose data may have been impacted," it said. The full extent of the data breach remains unknown, and UnitedHealth has said it...