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blogs.microsoft.com › on-the-issues › 2026 › …

Disrupting Fox Tempest: A cybercrime service that turned “verified” software into a pathway for ransomware 

… Vanilla Tempest has targeted schools , hospitals , and other critical organizations worldwide , while Rhysida, a highly evolved ransomware variant that both encrypts files and steals data, often used for double extortion, has been used by various actors in numerous high-profile attacks globally, in… …

May 19, 2026 · Steven Masada