{"id":231156,"date":"2026-02-12T05:28:03","date_gmt":"2026-02-12T11:28:03","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2026\/02\/microsoft-store-outlook-add-in-hijacked-to-steal-4000-microsoft-accounts"},"modified":"2026-02-12T05:28:03","modified_gmt":"2026-02-12T11:28:03","slug":"microsoft-store-outlook-add-in-hijacked-to-steal-4000-microsoft-accounts","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2026\/02\/microsoft-store-outlook-add-in-hijacked-to-steal-4000-microsoft-accounts","title":{"rendered":"Microsoft Store Outlook add-in hijacked to steal 4,000 Microsoft accounts"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/microsoft-store-outlook-add-in-hijacked-to-steal-4000-microsoft-accounts.jpg\"><\/a><\/p>\n<p>The AgreeTo add-in for Outlook has been hijacked and turned into a phishing kit that stole more than 4,000 Microsoft account credentials.<\/p>\n<p>Originally a legitimate meeting scheduling tool for Outlook users, the module was developed by an independent publisher and has been on the Microsoft Office Add-in Store since December 2022.<\/p>\n<p>Office add-ins are just URLs pointing to content loaded into Microsoft products from the developer\u2019s server. In the case of AgreeTo, the developer used a Vercel-hosted URL (outlook-one.vercel.app) but abandoned the project, despite the userbase it formed.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The AgreeTo add-in for Outlook has been hijacked and turned into a phishing kit that stole more than 4,000 Microsoft account credentials. Originally a legitimate meeting scheduling tool for Outlook users, the module was developed by an independent publisher and has been on the Microsoft Office Add-in Store since December 2022. Office add-ins are just [\u2026]<\/p>\n","protected":false},"author":427,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34],"tags":[],"class_list":["post-231156","post","type-post","status-publish","format-standard","hentry","category-cybercrime-malcode"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/231156","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/427"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=231156"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/231156\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=231156"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=231156"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=231156"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}