In February 2024, Change Healthcare, a subsidiary of UnitedHealth Group (UHG), was the victim of a significant ransomware attack carried out by the ALPHV/BlackCat ransomware group. The attackers gained access to Change Healthcare's systems for over a week between February 12 and 20 February 2024, stealing around 4 terabytes of data, including protected health information (PHI) in the process. The breach had the potential to impact up to 110 million individuals, potentially exposing sensitive h
