The cyber-attack on Change Healthcare, a subsidiary of UnitedHealth Group, resulted in a massive data breach affecting approximately 190 million individuals. This figure, updated from an initial report of 100 million, makes it the worst healthcare data breach of 2024. The breach incurred staggering costs of $3.1 billion for UnitedHealth Group. Attack ramifications include the exposure of sensitive personal and health information, leading to numerous lawsuits against the company by health organizations. The threat actor behind the incident, ALPHV/Blackcat ransomware group, was confirmed by Change Healthcare.
"id": "uni000020125",
"linkid": "unitedhealth-group",
"type": "Ransomware",
"date": "1/2025",
"severity": "100",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"