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Change Healthcare outages reportedly caused by ransomware

ID: 318e9ff2-85e6-5dbe-b89b-e61b51468ef7

STIX ID: report--318e9ff2-85e6-5dbe-b89b-e61b51468ef7

Feed Name: Malwarebytes Blog

Threat Score
80/100

Date Published: 2024-02-28

Date Updated: 2026-04-28

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On February 21, 2024 Change Healthcare (an Optum/UnitedHealth subsidiary) experienced major system outages from a cyberattack that disrupted nationwide billing and pharmacy services; reporting and forensic sources link the incident to the ALPHV/BlackCat ransomware group while the company describes a suspected nation-state–associated actor and continues investigation and containment efforts.

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