
Change Healthcare Ransomware Breakdown
In February 2024, the U.S. healthcare system was rocked by a cyberattack of unprecedented scale. Change Healthcare, a subsidiary of UnitedHealth Group that processes nearly 40% of all U.S. medical claims, was brought to its knees by ransomware. The fallout was catastrophic, disrupting prescriptions, billing, and patient care nationwide. The root cause wasn’t a sophisticated zero-day exploit, but a shocking failure of basic security hygiene: a critical remote-access system lacked multi-factor authentication (MFA). ...