Change Healthcare data breach, perpetrated by the Alphv/BlackCat ransomware gang, exposed the private data of approximately 190 million people, over half the U.S. population. Compromised data includes personal, medical and insurance details. UnitedHealth Group incurred $1.1 billion in costs due to the breach. Despite a major law enforcement crackdown, the attackers and their affiliates continue to cause disruption.
UnitedHealth cyber attack exposes 190 million in largest US healthcare data breach
UnitedHealth’s Change Healthcare unit suffered a major data breach in February 2024, initially reported to have affected around 100 million individuals but later revised to