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Ransomware used in attack that disrupted US hospitals 

ID: 5959d07b-79f5-52e6-abb2-56d796ba5768

STIX ID: report--5959d07b-79f5-52e6-abb2-56d796ba5768

Feed Name: CyberScoop

Threat Score
80/100

Date Published: 2024-05-13

Date Updated: 2026-04-21

Author: AJ Vicens

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A ransomware attack attributed to the Black Basta group disrupted Ascension’s electronic health records and other clinical systems across its 140 hospitals, forcing downtime procedures and some ambulance diversions; Ascension is coordinating with the FBI and CISA. The report notes Black Basta has accelerated attacks against healthcare and has impacted hundreds of organizations, making it a significant sector-wide threat.

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