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Cheyenne & Arapaho Tribes

rhysida

This record tracks a ransomware attack claimed by the rhysida group against Cheyenne & Arapaho Tribes. It collects the publicly disclosed attack details — sector, location and timeline — as published on the operator's leak site and indexed by Breach House.

Country
United States
Business Category
Public Sector
Employees
51-100
Discovered
2026-02-17
Published
February 17, 2026
Victim ID
RQ01opI9Aax1

Attack Summary

Cheyenne & Arapaho Tribes The Cheyenne and Arapaho Tribes are a federally recognized united nation of two distinct peoples-the Tsistsistas (Cheyenne) and Hinono'ei (Arapaho)-with a historic alliance formed in the early 19th century.

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