In February 2024, Change Healthcare, a major medical billing processor in the US owned by UnitedHealth, suffered a ransomware attack by ALPHV/BlackCat gang, impacting over 100 million people. The breach involved personal data including phone numbers, addresses, financial information, health records, diagnoses, prescriptions, and treatment details. The company paid a $22 million ransom, but the aftermath saw an increased rate of healthcare-focused cyberattacks, along with lawsuits and significant blowback for compromised security measures.
Source: https://www.wired.com/story/worst-hacks-2024/
"id": "cha000122724",
"linkid": "change-healthcare",
"type": "Ransomware",
"date": "12/2024",
"severity": "100",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"