Security Incidents Microsoft Disrupts Malware-Signing Service Used in Ransomware Attacks May 21, 2026 Fox Tempest threat actor exploited Microsoft's Artifact Signing system to deliver signed malware to thousands… Read More
Security Incidents Microsoft disrupts illegal code-signing operation targeting thousands of US victims May 20, 2026 Tech giant shuts down malware signing service used by ransomware groups to bypass security controls. Read More