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Ransomware attack affects Michigan casinos and tribal health centers

ID: 9260b57a-c944-5cd9-b0a5-6278e758ae88

STIX ID: report--9260b57a-c944-5cd9-b0a5-6278e758ae88

Feed Name: DataBreaches.Net

Threat Score
76/100

Date Published: 2025-02-17

Date Updated: 2026-04-19

Author: Dissent

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**RansomHub** claimed responsibility for a ransomware attack on the **Sault Ste. Marie Tribe of Chippewa Indians**, asserting it locked tribal infrastructure and stole 119 GB of data affecting casinos, government services, telecommunications, and multiple health centers. The group threatened to leak data, blaming insurers and the board for not engaging, while the tribe confirmed an ongoing ransomware incident beginning Feb. 9 that disrupted phone and computer systems and is being remediated with limited operations and phased restoration.

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