US govt probes if ransomware gang stole Change Healthcare data

A late-February ransomware attack on Change Healthcare (an Optum/UnitedHealth Group subsidiary)—linked to the BlackCat (ALPHV) ransomware gang—shut down critical services, disrupted prescriptions and claims processing nationwide, and allegedly resulted in the theft of roughly 6 TB of sensitive data including PII and medical records; the HHS Office for Civil Rights has opened an investigation into potential HIPAA breaches as the incident continues to affect the U.S. healthcare sector.