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ALPHV/BlackCat responsible for Change Healthcare cyberattack

ID: 44079119-49b6-5032-9ada-84b8d458509e

STIX ID: report--44079119-49b6-5032-9ada-84b8d458509e

Feed Name: The Register (Security)

Threat Score
80/100

Date Published: 2024-02-26

Date Updated: 2026-04-26

Author: Jessica Lyons

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The report details an ongoing, large-scale cyberattack against Change Healthcare that has disrupted pharmacy systems nationwide, reportedly attributed by some sources to the ALPHV/BlackCat ransomware group; the outage has prevented transmission of insurance claims and caused significant prescription processing delays while Change Healthcare, UnitedHealth, law enforcement and third-party responders work to restore systems.

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