{"rewrite":{"id":"r_26afc83b21dab231c72c5c2f","clusterId":"c_579b38ee1311b17118264af1","slug":"nikkei-says-cloud-accounts-breached-9-000-spoofed-emails-sent","model":"deepseek-v4-1-flash","headline":"Nikkei Says Cloud Accounts Breached, 9,000 Spoofed Emails Sent","summary":"Nikkei Inc. said on October 4 that a Microsoft 365 account used by employees was accessed without authorization, and that about 9,000 emails impersonating employees were sent. Passwords were changed and no further unauthorized logins have been confirmed. A separate Google Workspace account was accessed from outside since late July, and the email addresses and names of 1,646 people may have leaked.","whyItMatters":"The two disclosures show a media company's own cloud mail being used as a sending platform for impersonation, which is the part of a breach that reaches people outside the company.","webCardHtml":"\u003cp\u003eNikkei is contacting the recipients of the roughly 9,000 impersonating emails one by one and asking them to delete the messages. The company said it changed passwords and has not confirmed any further unauthorized logins to the Microsoft 365 account.\u003c/p\u003e\u003cp\u003eThe Google Workspace case ran longer. Access from outside began in late July and was found in early August after Google sent a notification. The names and email addresses of 1,646 people, including employees and business partners, may have leaked, and no unauthorized logins have been confirmed since the password was changed.\u003c/p\u003e","blueskyPost":"Nikkei says a work Microsoft 365 account was accessed without authorization and about 9,000 emails impersonating employees went out. A separate Google Workspace account was hit from late July; names and addresses of 1,646 people may have leaked.","twitterPost":"Nikkei: a work Microsoft 365 account was accessed without authorization, and about 9,000 emails impersonating employees were sent. Separately, a Google Workspace account was accessed from late July; 1,646 people's names and addresses may have leaked.","threadsPost":null,"newsletterBlurb":"Nikkei disclosed that a Microsoft 365 account used by employees was accessed without authorization and that about 9,000 emails impersonating employees were sent. The company changed passwords and says no further unauthorized logins have been confirmed. A separate Google Workspace account was accessed from outside since late July, and the names and email addresses of 1,646 employees and business partners may have leaked.","attributionJson":"[{\"source\":\"ASCII.jp\",\"url\":\"https://ascii.jp/elem/000/004/439/4439859/?rss\",\"title\":\"Nikkei Hit by Cyberattack, 9,000 Spoofed Emails; Unauthorized Login to Microsoft 365 - \\\"Isn't This Bad?\\\" \\\"This Is Nasty\\\"\"}]","lintFlagsJson":null,"lintHits":0,"costUsd":0,"inputTokens":4836,"outputTokens":585,"status":"published","repairAttempts":0,"nextRepairAt":null,"factsAttemptedAt":1791189868,"createdAt":"2026-10-05T08:40:32.000Z","publishedAt":"2026-10-05T08:43:26.000Z","updatedAt":"2026-10-05T08:43:26.000Z"},"cluster":{"id":"c_579b38ee1311b17118264af1","canonicalTitle":"日経にサイバー攻撃、なりすましメール9000件　Microsoft 365に不正ログイン　「ヤバくないか？」「タチが悪い」","representativeArticleId":"a_0eb8cef2301d40ab2b7fed6b","sourceCount":1,"writtenSourceCount":1,"writeAttempts":0,"isSolo":true,"entitiesJson":"{\"anime_titles\":[],\"manga_titles\":[],\"work_titles\":[],\"studios\":[],\"people\":[],\"type\":\"news\",\"domain\":\"other\",\"is_roundup\":false}","contentType":"news","status":"published","firstSeenAt":"2026-10-05T00:40:00.000Z","lastSeenAt":"2026-10-05T00:40:00.000Z","updatedAt":"2026-10-05T08:43:22.000Z"},"attribution":[{"source":"ASCII.jp","url":"https://ascii.jp/elem/000/004/439/4439859/?rss","title":"日経にサイバー攻撃、なりすましメール9000件　Microsoft 365に不正ログイン　「ヤバくないか？」「タチが悪い」"}],"entities":{"anime_titles":[],"manga_titles":[],"work_titles":[],"studios":[],"people":[],"type":"news","domain":"other","is_roundup":false},"keyFacts":null}