UnitedHealth Group Reports 190 Million Affected by Change Healthcare Ransomware Attack, 1 Million Patient Records Stolen in 2025

UnitedHealth Group has reported that nearly 190 million Americans were affected by last year’s Change Healthcare ransomware attack, a figure that is nearly double the number previously reported to the Department of Health and Human Services in October. Additionally, a US nonprofit healthcare provider has confirmed that hackers stole medical and personal data of over 1 million patients during the incident. This breach has raised concerns about cybersecurity in the healthcare sector, as it highlights vulnerabilities that can lead to significant data theft.