Rhysida claims a ransomware incident against the Cheyenne and Arapaho Tribes in the United States, threatening data exfiltration and operational disruption. The Cheyenne and Arapaho Tribes are a federally recognized united nation of the Tsistsistas and Hinono’ei, with a historic alliance dating back to the early 19th century.
#UnitedStates
#UnitedStates
Incident Details
- Victim: Cheyenne & Arapaho Tribes
- Sector: Public Sector
- Country: US
- Actor: rhysida
- Source:
- Discovered: 2026-02-17 21:24:18.596496
- Published: 2026-02-17 21:24:16.682873
Information
- rhysida
- Cheyenne & Arapaho Tribes
- Federally recognized united nation of two distinct peoples — the Tsistsistas (Cheyenne) and Hinono’ei (Arapaho)
- Historic alliance formed in the early 19th century
Disclaimer: This post is based on public claims made by the ransomware group "rhysida". I cannot confirm the accuracy of the information. However, I would be happy to share any official statement from the affected organization to provide clarification.