threat-intel GoldenEyeDog Subgroup Linked to DigiCert Breach and Code-Signing Certificate Theft A Chinese cybercrime group, known as CylindricalCanine (a sub-group of GoldenEyeDog), has been linked to a significant security breach at DigiCert, a code-signing certificate provider. The attackers exploited a vulnerability within DigiCert's support portal, allowing them to steal code-signing certificates and use them… The Hacker News · Jul 17, 2026 High CNcode-signingphishingmalware
threat-intel Microsoft Takes Down Malware-Signing Service Behind Ransomware Attacks Microsoft disrupted a malware-signing-as-a-service (MSaaS) operation, dubbed OpFauxSign, led by the threat actor Fox Tempest, which was using its Artifact Signing system to distribute malware and ransomware. The operatio… The Hacker News · May 20, 2026 High USFRINmsaascode-signingmalware
