Microsoft Collaborates with Japan's National Police Agency to Disrupt Cybercrime Network Responsible for Over a Billion Scam Messages
In collaboration with Japan’s National Police Agency, Microsoft has dismantled a cybercriminal network responsible for sending over one billion scam messages globally. The operation targeted YAM Store and phishing kits CoGUI and Iron Man, which were used to distribute malicious communications targeting consumers, healthcare organizations, financial institutions, and other businesses across more than 150 countries. Microsoft reports that the criminal marketplace allowed scammers to purchase stolen or fraudulent Microsoft and Google accounts for use in phishing attacks. The network also hijacked expired web domains of real organizations to create fake websites used for fraud. As part of its efforts, Microsoft disabled over 20,000 accounts linked to YAM Store and blocked more than 100,000 malicious domains. The operation has disrupted a scheme that generated tens of millions in illicit revenue while posing significant risks to global cybersecurity. The collaboration with Health-ISAC also helped seize web domains used by the platforms.
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Topics: Japan National Police Agency Microsoft phishing kits scam messages YAM Store