{"id":3203,"date":"2026-02-11T17:45:00","date_gmt":"2026-02-11T17:45:00","guid":{"rendered":"https:\/\/infosec-daily.com\/?page_id=3203"},"modified":"2026-02-11T17:45:00","modified_gmt":"2026-02-11T17:45:00","slug":"first-malicious-outlook-add-in-found-stealing-4000-microsoft-credentials","status":"publish","type":"page","link":"https:\/\/infosec-daily.com\/?page_id=3203","title":{"rendered":"First Malicious Outlook Add-In Found Stealing 4,000+ Microsoft Credentials"},"content":{"rendered":"<p>Cybersecurity researchers have discovered what they said is the first known malicious Microsoft Outlook add-in detected in the wild.<br \/>\nIn this unusual supply chain attack detailed by Koi Security, an unknown attacker claimed the domain associated with a now-abandoned legitimate add-in to serve a fake Microsoft login page, stealing over 4,000 credentials in the process. The activity has been<\/p>","protected":false},"excerpt":{"rendered":"<p>Cybersecurity researchers have discovered what they said is the first known malicious Microsoft Outlook add-in detected in the wild. In this unusual supply chain attack detailed by Koi Security, an&hellip;<\/p>\n","protected":false},"author":1,"featured_media":3204,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"saved_in_kubio":false,"footnotes":""},"class_list":["post-3203","page","type-page","status-publish","has-post-thumbnail","hentry"],"kubio_ai_page_context":{"short_desc":"","purpose":"general"},"_links":{"self":[{"href":"https:\/\/infosec-daily.com\/index.php?rest_route=\/wp\/v2\/pages\/3203","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/infosec-daily.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/infosec-daily.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/infosec-daily.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/infosec-daily.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3203"}],"version-history":[{"count":0,"href":"https:\/\/infosec-daily.com\/index.php?rest_route=\/wp\/v2\/pages\/3203\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/infosec-daily.com\/index.php?rest_route=\/wp\/v2\/media\/3204"}],"wp:attachment":[{"href":"https:\/\/infosec-daily.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3203"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}