Microsoft Neutralizes Fox Tempest Infrastructure Abusing Artifact Signing for Global Ransomware Campaigns
Microsoft's Digital Crimes Unit has disrupted 'SignSpace,' a prolific malware-signing-as-a-service operation run by the threat actor Fox Tempest. By weaponizing Microsoft's own Artifact Signing system via stolen identities, the actor provided valid digital certificates to ransomware groups including Vanilla Tempest, Akira, and Qilin, allowing malicious payloads to bypass enterprise security controls globally. Read more