Federal Agencies Warn of Gunra Ransomware Targeting Healthcare, Government and Critical Services

Federal cybersecurity agencies are warning organizations about Gunra ransomware, which has targeted sectors including healthcare, government, transportation, utilities and other critical services. Andrey_Popov/Shutterstock

The Cybersecurity and Infrastructure Security Agency (CISA), along with the FBI, the Department of Defense Cyber Crime Center, the National Security Agency, the U.S. Secret Service, and South Korea’s National Police Agency, has issued an official joint advisory warning organizations about a ransomware threat known as Gunra. The advisory, released on August 10, 2026, and designated AA26-222A, is part of CISA’s ongoing #StopRansomware campaign.

Federal Agencies Issue Joint Warning About Gunra