{"id":10780,"date":"2026-02-19T10:03:49","date_gmt":"2026-02-19T10:03:49","guid":{"rendered":"https:\/\/serisec.com\/index.php\/2026\/02\/19\/microsoft-anti-phishing-rules-mistakenly-blocked-emails-teams-messages\/"},"modified":"2026-02-19T10:03:49","modified_gmt":"2026-02-19T10:03:49","slug":"microsoft-anti-phishing-rules-mistakenly-blocked-emails-teams-messages","status":"publish","type":"post","link":"https:\/\/serisec.com\/index.php\/2026\/02\/19\/microsoft-anti-phishing-rules-mistakenly-blocked-emails-teams-messages\/","title":{"rendered":"Microsoft: Anti-phishing rules mistakenly blocked emails, Teams messages"},"content":{"rendered":"<p>    Microsoft: Anti-phishing rules mistakenly blocked emails, Teams messages<br \/>\n \t<BR><br \/>\n<BR><\/BR><br \/>\n    <!-- no image --><br \/>\n \t<BR><br \/>\n<BR><\/BR><\/p>\n<div>Microsoft says an Exchange Online issue that mistakenly quarantined legitimate emails last week was triggered by faulty\u00a0heuristic detection rules designed to block credential phishing campaigns. [&#8230;]<\/div>\n<p> \t<BR><br \/>\n <BR><\/BR><br \/>\n    Sergiu Gatlan<br \/>\n \t<BR><br \/>\n<BR><\/BR><br \/>\n<a href=\"https:\/\/www.bleepingcomputer.com\/news\/microsoft\/microsoft-anti-phishing-rules-mistakenly-blocked-emails-teams-messages\/\">Go to bleepingcomputer<\/a><br \/>\n \t<BR><br \/>\n <BR><\/BR><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Microsoft: Anti-phishing rules mistakenly blocked emails, Teams messages Microsoft says an Exchange Online issue that mistakenly quarantined legitimate emails last week was triggered by faulty\u00a0heuristic detection rules designed to block credential phishing campaigns. [&#8230;] Sergiu Gatlan Go to bleepingcomputer<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[64,158],"tags":[80],"class_list":["post-10780","post","type-post","status-publish","format-standard","hentry","category-bleepingcomputer","category-microsoft","tag-bleepingcomputer"],"_links":{"self":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/posts\/10780"}],"collection":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/comments?post=10780"}],"version-history":[{"count":0,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/posts\/10780\/revisions"}],"wp:attachment":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/media?parent=10780"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/categories?post=10780"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/tags?post=10780"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}