Microsoft and Proofpoint executed a CoGUI phishing kit takedown, seizing domains from YAM Store and Iron Man after 1B scam messages hit 75,000 firms.
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securityonline.infoMicrosoft and Proofpoint Disrupt CoGUI Phishing Kit, YAM Store, and Iron ManTL;DR Microsoft, Health-ISAC, Proofpoint, and international partners executed a major CoGUI phishing kit takedown alongside connected criminal marketplaces YAM Store and Iron Man. Since January 2026, these platforms enabled over one billion scam messages targeting 75,000 organizations worldwide. Consequently, a federal court order allowed investigators to seize malicious domains and disable more than 20,000 fraudulent accounts. What Happened in the Operation…