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Stormous Ransomware gang targets North Country HealthCare, claims 600K patient data stolen

ID: c5ca0f22-1a14-5698-ad0c-c922ba8ccb4a

STIX ID: report--c5ca0f22-1a14-5698-ad0c-c922ba8ccb4a

Feed Name: Security Affairs

Threat Score
78/100

Date Published: 2025-07-17

Date Updated: 2026-04-22

Author: Pierluigi Paganini

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Stormous, a pro‑Russia double‑extortion ransomware group active since 2022, claims to have stolen PII and PHI for 600,000 patients from North Country HealthCare (14 sites in northern Arizona), announcing 100,000 records for sale and the publication of 500,000 records on its leak site.

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