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Ascension says recent data breach affects over 430,000 patients

ID: fb39f18f-26a3-5e21-945a-28f2f8aeea03

STIX ID: report--fb39f18f-26a3-5e21-945a-28f2f8aeea03

Feed Name: Bleeping Computer

Threat Score
78/100

Date Published: 2025-05-09

Date Updated: 2026-04-20

Author: Sergiu Gatlan

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Ascension disclosed that personal and healthcare records for over 437,000 patients were exposed after information was inadvertently shared with a former business partner and likely stolen due to a vulnerability in third-party Cleo file-transfer software; the breach is linked to Clop ransomware data-theft activity and follows earlier ransomware compromises affecting the organization.

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