Change Healthcare
UnitedHealth Group subsidiary
Change Healthcare, a UnitedHealth Group subsidiary, handles about 15,000,000,000 healthcare transactions a year and touches one in three American patient records. Most of the people in those records had never heard its name. Intruders entered through a Citrix portal on 12 February 2024, and the ransomware group ALPHV, also called BlackCat, locked the systems on 21 February. UnitedHealth paid a ransom of $22,000,000 in bitcoin. The data taken included Social Security numbers, diagnoses, medications, test results and insurance IDs. UnitedHealth confirmed the theft publicly on 22 April 2024 and offered two years of credit monitoring. Letters to the individuals themselves began going out in late July, five months after the attack. The final count reported to the HHS Office for Civil Rights was approximately 192,700,000 people.
“They called it Change Healthcare. My identity changed without my consent.”
Since
HHS opened an investigation and has announced no penalty. The consolidated lawsuits in Minnesota federal court survived a motion to dismiss in part in December 2025, with no class certified and no settlement as of 30 September 2026. Nebraska's attorney general sued on 16 December 2024, and that case also survived a motion to dismiss.