{"rewrite":{"id":"r_7e579a76d7bbcf553608b57c","clusterId":"c_e77344b9ccec6113458576ff","slug":"microsoft-and-japan-s-police-begin-takedown-of-scam-marketplace-services","model":"deepseek-v4-1-flash","headline":"Microsoft and Japan's Police Begin Takedown of Scam Marketplace Services","summary":"Steven Masada of Microsoft's Digital Crimes Unit said the company, working with Japan's National Police Agency, has begun dismantling an online marketplace that supports scam messages aimed at people and businesses in Japan. The services named are YAM Store, CoGUI, and Iron Man; since January 2026 more than 1 billion malicious messages were sent through them, more than 750 million to Microsoft customers, targeting over 75,000 organizations.","whyItMatters":"The takedown names and goes after the supply side of scam messaging, the accounts, hosting, and fake-site tools criminals rent rather than the messages themselves, which is what makes repeated blocking ineffective.","webCardHtml":"\u003cp\u003eThe named services are YAM Store, CoGUI, and Iron Man, and Microsoft says it has begun dismantling all three. The trail ran through a Chinese-language cybercrime ecosystem where accounts, hosting, and tools for building fake websites and fake online identities were bought and sold. Investigators, working with the National Police Agency and partner organizations, traced attack routes and reached the operators supplying services to criminals. Messages went out to consumers, medical institutions, financial institutions, and other companies across more than 150 countries, and operators earned profits on the scale of tens of millions of dollars.\u003c/p\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003eYAM Store\u003c/strong\u003e: online marketplace service involved in cybercrime\u003c/li\u003e\u003cli\u003e\u003cstrong\u003eCoGUI\u003c/strong\u003e: investigators gained access and found it provides criminals with ready-made websites and messages\u003c/li\u003e\u003cli\u003e\u003cstrong\u003eIron Man\u003c/strong\u003e: online marketplace service involved in cybercrime\u003c/li\u003e\u003c/ul\u003e","blueskyPost":"Microsoft's Digital Crimes Unit calls the marketplace YAM Store, CoGUI, and Iron Man; the volume is the point. Over 1 billion malicious messages since January 2026, 750 million to Microsoft customers, 75,000 organizations hit.","twitterPost":"Steven Masada names YAM Store, CoGUI, and Iron Man. Microsoft counted 1 billion-plus scam messages since January 2026, most aimed at its own customers.","threadsPost":"Steven Masada of Microsoft's Digital Crimes Unit ties the takedown to impact: YAM Store, CoGUI, and Iron Man pushed over 1 billion malicious messages since January 2026, and more than 750 million landed on Microsoft customers across 75,000 organizations. The infrastructure is the target, not the senders.","newsletterBlurb":"Microsoft and Japan's National Police Agency have begun dismantling an online marketplace that supports scam messages targeting people and businesses in Japan. Three services are named: YAM Store, CoGUI, and Iron Man. Since January 2026, more than 1 billion malicious messages went out through them, over 750 million of those to Microsoft customers, across more than 150 countries.","attributionJson":"[{\"source\":\"GIGAZINE\",\"url\":\"https://gigazine.net/news/20261015-microsoft-japan-took-down-cybercrime-network/\",\"title\":\"Microsoft and Japan's National Police Agency Dismantle Online Marketplace Supporting Scam Messages Targeting Japanese, Such as \\\"We Cannot Deliver Your Package\\\" and \\\"Your Payment Is Overdue\\\"\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":4570,"outputTokens":688,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1792036348,"createdAt":"2026-10-15T03:50:32.000Z","publishedAt":"2026-10-15T03:51:11.000Z","updatedAt":"2026-10-15T03:51:11.000Z"},"cluster":{"id":"c_e77344b9ccec6113458576ff","canonicalTitle":"「荷物をお届けできません」「料金が未払いです」などの日本人を狙った詐欺メッセージの送信を支える電子市場をMicrosoftと警察庁が解体","representativeArticleId":"a_9c7fc78ad4c7bb2c5a73d751","sourceCount":2,"writtenSourceCount":1,"writeAttempts":0,"isSolo":false,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[],\"studios\":[],\"people\":[\"Steven Masada\"],\"type\":\"news\",\"domain\":\"other\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-10-15T02:18:00.000Z","lastSeenAt":"2026-10-15T04:50:00.000Z","updatedAt":"2026-10-15T04:56:51.000Z"},"attribution":[{"source":"ASCII.jp","url":"https://ascii.jp/elem/000/004/442/4442838/?rss","title":"10億通超の詐欺メッセージを支えたサービス、Microsoftが差し押さえ　日本の警察庁も協力"},{"source":"GIGAZINE","url":"https://gigazine.net/news/20261015-microsoft-japan-took-down-cybercrime-network/","title":"「荷物をお届けできません」「料金が未払いです」などの日本人を狙った詐欺メッセージの送信を支える電子市場をMicrosoftと警察庁が解体"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":[],"studios":[],"people":["Steven Masada"],"type":"news","domain":"other","is_roundup":false},"keyFacts":null}