{"id":15554,"date":"2026-10-06T10:53:37","date_gmt":"2026-10-06T05:23:37","guid":{"rendered":"https:\/\/threatcop.com\/blog\/?p=15554"},"modified":"2026-10-06T10:53:43","modified_gmt":"2026-10-06T05:23:43","slug":"secure-email-gateway-misses-phishing","status":"publish","type":"post","link":"https:\/\/threatcop.com\/blog\/secure-email-gateway-misses-phishing\/","title":{"rendered":"Why Secure Email Gateways Miss Phishing Attacks"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Secure email gateways miss phishing because they look for known-bad signals, and modern attacks carry none. A lure sent from a real compromised account, hosted on a trusted platform, with no attachment and no known-bad link, looks clean to a filter. That is why reported mail from employees still finds threats that technology passed.<\/p><div id=\"ez-toc-container\" class=\"ez-toc-v2_0_88 ez-toc-wrap-center counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #414141;color:#414141\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #414141;color:#414141\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/threatcop.com\/blog\/secure-email-gateway-misses-phishing\/#What_a_Gateway_Actually_Checks\" >What a Gateway Actually Checks<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/threatcop.com\/blog\/secure-email-gateway-misses-phishing\/#Why_Modern_Phishing_Slips_Through\" >Why Modern Phishing Slips Through<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/threatcop.com\/blog\/secure-email-gateway-misses-phishing\/#Book_a_Free_Demo_Call_with_Our_Expert\" >Book a Free Demo Call with Our Expert<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/threatcop.com\/blog\/secure-email-gateway-misses-phishing\/#The_Delivery_Gap\" >The Delivery Gap<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/threatcop.com\/blog\/secure-email-gateway-misses-phishing\/#People_Are_the_Detection_Layer_That_Remains\" >People Are the Detection Layer That Remains<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/threatcop.com\/blog\/secure-email-gateway-misses-phishing\/#Close_the_Gap_With_Reporting_Not_More_Filtering\" >Close the Gap With Reporting, Not More Filtering<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/threatcop.com\/blog\/secure-email-gateway-misses-phishing\/#Keep_the_Technical_Layer_Working_Too\" >Keep the Technical Layer Working Too<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/threatcop.com\/blog\/secure-email-gateway-misses-phishing\/#The_Bottom_Line\" >The Bottom Line<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/threatcop.com\/blog\/secure-email-gateway-misses-phishing\/#Frequently_Asked_Questions\" >Frequently Asked Questions<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_a_Gateway_Actually_Checks\"><\/span>What a Gateway Actually Checks<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A secure email gateway, or SEG, sits in front of the mailbox and screens mail. It checks sender reputation, domain authentication, known-bad links, attachments, and patterns it has seen before. That work still matters, because it removes most bulk spam and commodity malware.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The limit is the model. A gateway asks whether a message resembles something already known to be bad. Targeted attacks are designed to resemble something known to be good. <a href=\"https:\/\/www.verizon.com\/business\/resources\/reports\/dbir\/\" rel=\"nofollow noopener\" target=\"_blank\">Verizon&#8217;s breach research<\/a> keeps finding a human element in most breaches, which is what this gap produces.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Threatcop has written about how <a href=\"https:\/\/threatcop.com\/blog\/phishing-emails-fool-email-filters\/\">email filters miss certain phishing messages<\/a>. So this guide explains why that happens, and what to do about the gap.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Modern_Phishing_Slips_Through\"><\/span>Why Modern Phishing Slips Through<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Attackers have removed the signals filters depend on. The table shows the common technique and the check it defeats.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>Technique<\/strong><\/th><th><strong>What the attacker does<\/strong><\/th><th><strong>Why the filter passes it<\/strong><\/th><\/tr><\/thead><tbody><tr><td>Compromised account<\/td><td>Sends from a real, trusted mailbox<\/td><td>Sender reputation and authentication pass<\/td><\/tr><tr><td>Trusted hosting<\/td><td>Puts the page on a well-known platform<\/td><td>The domain has a clean reputation<\/td><\/tr><tr><td>No payload<\/td><td>Sends plain text with no link or file<\/td><td>Nothing to scan<\/td><\/tr><tr><td>Delayed weaponization<\/td><td>Sends a clean link, arms it after delivery<\/td><td>The link was safe at scan time<\/td><\/tr><tr><td>Lookalike domain<\/td><td>Registers a new, similar domain<\/td><td>Too new to be on any blocklist<\/td><\/tr><tr><td>Image-only content<\/td><td>Puts the words inside a picture<\/td><td>Text analysis has nothing to read<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The pattern is consistent. None of these need a technical exploit. They simply avoid every signal the gateway was built to catch.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/learn.microsoft.com\/en-us\/defender-office-365\/email-authentication-about\" rel=\"nofollow noopener\" target=\"_blank\">Microsoft&#8217;s guidance on email authentication<\/a> notes the same limit: authentication proves a sender is who they claim, not that the message is safe.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Conversation hijacking shows how far this goes. An attacker inside a real mailbox replies inside an existing thread, with correct names and history. The message is genuine in every technical sense, and only the intent is wrong.<\/p>\n\n\n\n<meta charset=\"UTF-8\">\n<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n<title>Threatcop \u2013 Book a Free Demo<\/title>\n<link href=\"https:\/\/fonts.googleapis.com\/css2?family=Outfit:wght@300;400;500;600;700&#038;display=swap\" rel=\"stylesheet\">\n<style>\n  .tc-wrap , .tc-wrap ::before, .tc-wrap ::after { box-sizing: border-box; margin: 0; padding: 0; }\n  .tc-wrap { font-family: 'Outfit', sans-serif; width: 100%; display: flex; justify-content: center; padding: 20px 10px; }\n  .tc-card { width: 100%; max-width: 820px; background: #fff; border-radius: 20px; overflow: hidden; box-shadow: 0 20px 60px rgba(24,57,148,0.13), 0 4px 16px rgba(24,57,148,0.07); display: flex; flex-direction: row; }\n  .tc-left { background: linear-gradient(160deg, #1e44b0 0%, #183994 40%, #0e2570 100%); width: 320px; flex-shrink: 0; padding: 40px 32px; display: flex; flex-direction: column; 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}\n  .tc-btn-submit svg { width: 16px; height: 16px; stroke: #fff; stroke-width: 2.2; fill: none; flex-shrink: 0; }\n  .tc-trust { margin-top: 10px !important; display: flex !important; align-items: center !important; justify-content: center !important; gap: 5px; font-size: 13px !important; color: #a0b0cc !important; font-family: 'Outfit', sans-serif !important; }\n  .tc-trust svg { width: 12px; height: 12px; stroke: #a0b0cc; stroke-width: 2; fill: none; flex-shrink: 0; }\n  @media (max-width: 680px) {\n    .tc-card { flex-direction: column !important; }\n    .tc-left { width: 100% !important; padding: 28px 24px 24px !important; }\n    .tc-right { padding: 24px 20px !important; }\n    .tc-grid { grid-template-columns: 1fr !important; }\n    .tc-field.full { grid-column: 1 !important; }\n  }\n<\/style>\n\n<div class=\"tc-wrap\">\n  <div class=\"tc-card\">\n    <div class=\"tc-left\">\n      <div class=\"tc-panel-inner\">\n        <div class=\"tc-badge\">\n          <span class=\"tc-badge-dot\"><\/span>\n          People Security Management\n        <\/div>\n        <h2><span class=\"ez-toc-section\" id=\"Book_a_Free_Demo_Call_with_Our_Expert\"><\/span>Book a Free<br><em>Demo Call<\/em><br>with Our Expert<span class=\"ez-toc-section-end\"><\/span><\/h2>\n        <p class=\"tc-sub\">Discover how Threatcop protects your workforce from modern cyber threats.<\/p>\n      <\/div>\n    <\/div>\n    <div class=\"tc-right\">\n      <div class=\"tc-form-title\">Your Details<\/div>\n      <form action=\"https:\/\/threatcop.com\/thankyou-blog\" method=\"get\" target=\"_blank\">\n        <input type=\"hidden\" name=\"BlogForm\" value=\"BlogForm\">\n        <input type=\"hidden\" name=\"PageSource\" id=\"tc-page-source\" value=\"\">\n        <div class=\"tc-grid\">\n          <div class=\"tc-field\">\n            <label>Full Name<\/label>\n            <div class=\"tc-input-wrap\">\n              <input type=\"text\" name=\"FullName\" placeholder=\"Jane Smith\" required=\"\">\n              <svg class=\"tc-fi\" viewBox=\"0 0 24 24\" stroke-linecap=\"round\"><circle cx=\"12\" cy=\"8\" r=\"4\"><\/circle><path d=\"M4 20c0-4 3.58-7 8-7s8 3 8 7\"><\/path><\/svg>\n            <\/div>\n          <\/div>\n          <div class=\"tc-field\">\n            <label>Company Name<\/label>\n            <div class=\"tc-input-wrap\">\n              <input type=\"text\" name=\"CompanyName\" placeholder=\"Acme Corp\" required=\"\">\n              <svg class=\"tc-fi\" viewBox=\"0 0 24 24\" stroke-linecap=\"round\"><rect x=\"3\" y=\"3\" width=\"18\" height=\"18\" rx=\"2\"><\/rect><path d=\"M9 3v18M3 9h6M3 15h6\"><\/path><\/svg>\n            <\/div>\n          <\/div>\n          <div class=\"tc-field full\">\n            <label>Corporate Email<\/label>\n            <div class=\"tc-input-wrap\">\n              <input type=\"email\" name=\"email\" placeholder=\"jane@yourcompany.com\" required=\"\">\n              <svg class=\"tc-fi\" viewBox=\"0 0 24 24\" stroke-linecap=\"round\"><rect x=\"2\" y=\"4\" width=\"20\" height=\"16\" rx=\"2\"><\/rect><polyline points=\"2,4 12,13 22,4\"><\/polyline><\/svg>\n            <\/div>\n          <\/div>\n          <div class=\"tc-field full\">\n            <label>Phone Number<\/label>\n            <div class=\"tc-input-wrap\">\n              <input type=\"number\" name=\"Phone\" placeholder=\"98765 43210\" required=\"\">\n              <svg class=\"tc-fi\" viewBox=\"0 0 24 24\" stroke-linecap=\"round\"><path d=\"M22 16.92v3a2 2 0 01-2.18 2A19.79 19.79 0 013.09 4.18 2 2 0 015.07 2h3a2 2 0 012 1.72c.13.96.36 1.9.71 2.81a2 2 0 01-.45 2.11L9.09 9.91a16 16 0 006 6l1.27-1.27a2 2 0 012.11-.45c.91.35 1.85.58 2.81.71A2 2 0 0122 16.92z\"><\/path><\/svg>\n            <\/div>\n          <\/div>\n        <\/div>\n        <button type=\"submit\" class=\"tc-btn-submit\">\n          <svg viewBox=\"0 0 24 24\" stroke-linecap=\"round\"><path d=\"M22 2L11 13M22 2L15 22l-4-9-9-4 20-7z\"><\/path><\/svg>\n          Book My Free Demo\n        <\/button>\n        <div class=\"tc-trust\">\n          <svg viewBox=\"0 0 24 24\" stroke-linecap=\"round\"><rect x=\"3\" y=\"11\" width=\"18\" height=\"11\" rx=\"2\"><\/rect><path d=\"M7 11V7a5 5 0 0110 0v4\"><\/path><\/svg>\n          Your data is safe &amp; never shared with third parties\n        <\/div>\n      <\/form>\n    <\/div>\n  <\/div>\n<\/div>\n<script>document.getElementById('tc-page-source').value = window.location.href;<\/script>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_Delivery_Gap\"><\/span>The Delivery Gap<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Even a good secure email gateway has a timing problem. Scanning happens at delivery, so anything that changes afterward escapes the check.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A common version works like this. The attacker sends a link to a harmless page. The filter scans it and finds nothing. Hours later, once the message sits in inboxes, the page changes into a credential form. Nothing re-scans it, because the mail already passed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">So the question is not only what the gateway blocks. It is also what happens to mail that has already landed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"People_Are_the_Detection_Layer_That_Remains\"><\/span>People Are the Detection Layer That Remains<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">When a message beats every automated check, the recipient is the only remaining control. That is not a weakness in the design. It is the design, because a person can judge context that a filter cannot see.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A colleague notices that the finance director never asks for gift cards. Someone recognizes that a thread about an invoice stalled two months ago. <a href=\"https:\/\/threatcop.com\/blog\/how-to-recognize-phishing-emails\/\">Recognizing a phishing email<\/a> often comes down to knowing what normal looks like in your own company.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The catch is that noticing is useless if reporting is slow or awkward. A threat sitting unreported in ten inboxes is still a live threat.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Close_the_Gap_With_Reporting_Not_More_Filtering\"><\/span>Close the Gap With Reporting, Not More Filtering<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Adding a second filter rarely solves this, because both tools look for similar signals. A faster response does more.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Put a report button in the mail client.<\/strong> Make reporting faster than deleting.<\/li>\n\n\n\n<li><strong>Measure time to report, not just click rate.<\/strong> Minutes decide whether a campaign spreads.<\/li>\n\n\n\n<li><strong>Pull reported mail from every inbox at once.<\/strong> Finding one copy should remove all of them.<\/li>\n\n\n\n<li><strong>Tell the reporter what happened.<\/strong> Feedback keeps people reporting next time.<\/li>\n\n\n\n<li><strong>Treat near misses as wins.<\/strong> A false alarm costs minutes, while silence costs far more.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Speed is the whole point here. A campaign that reaches 200 inboxes does its damage in the first hour, so a report that arrives on Monday about a Friday message helps nobody. Track the gap between delivery and the first report, then work on shrinking it.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Automated <a href=\"https:\/\/threatcop.com\/threatcop-phishing-incident-response\">removal of reported mail<\/a> matters here, because manual triage is where the hours disappear. The goal is simple: cut the time between the first person noticing and the last copy leaving every mailbox.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Keep_the_Technical_Layer_Working_Too\"><\/span>Keep the Technical Layer Working Too<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">None of this argues for dropping the secure email gateway. Instead, make sure the basics are correct underneath it.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A secure email gateway works best on a clean foundation. Publish and enforce email authentication, since DMARC stops attackers from spoofing your own domain outright. Check that external-sender tags are on too, because they give recipients a visible cue. Also review which messages your filter quarantines rather than deletes, so a missed threat can still be found later.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Keep an eye on what your own domain is used for. Attackers who cannot get into your mail may still write to your customers while pretending to be you, and authentication records are what stop that.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Finally, run simulations that look like real attacks, not obvious tests. <a href=\"https:\/\/threatcop.com\/phishing-awareness-and-simulation\">Phishing simulation and awareness<\/a> keeps that practice regular without adding admin work. A lure with a clean link and no attachment measures the gap honestly, while an easy test flatters everyone and teaches nothing. Vary the style each quarter, because staff learn the pattern of a repeated test rather than the skill.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"The_Bottom_Line\"><\/span>The Bottom Line<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A secure email gateway buys you volume reduction, not certainty. The attacks that reach your staff are the ones built to look normal, so the final decision sits with a person. Make that person&#8217;s report fast and easy, then remove the message everywhere. That is the part most companies have not finished.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions\"><\/span>Frequently Asked Questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\t\t<div class=\"sp-easy-accordion-block sp-eab-regular-accordion alignwide\"\n\t\t\t\t>\n\t\t\t<div class=\"sp-eab-wrapper sp-eab-vertical-accordion sp-eab-366bfd059590\">\n\t\t\t\t\t\t\t\t<div class='sp-eab-accordion sp-eab-mode-vertical sp-eab-vertical-one sp-d-flex' data-accordion-settings=\"{&quot;mode&quot;:&quot;vertical&quot;,&quot;activeEvent&quot;:&quot;click&quot;,&quot;defaultAccordionOpen&quot;:&quot;first-item&quot;,&quot;selectedItemOpen&quot;:0,&quot;openMultiItemAtaTime&quot;:false,&quot;scrollToTopOnLoad&quot;:false,&quot;scrollToTopOnClick&quot;:false,&quot;accordionItemToUrl&quot;:false,&quot;animationEffect&quot;:false,&quot;applyAccessibility&quot;:true}\">\n        \t    \t\n\t\t\t<div\n\t\t\t\tid =\"sp-eab-item-ee8eb6928e3e\"\n\t\t\t\tclass=\"sp-eab-accordion-item eab-item-059590\"\n\t\t\t\t\t\t\t>\n\t\t\t\t<div class=\"sp-eab-accordion-item-wrapper\">\n\t\t\t\t\t\t\t\t<h3 class='sp-eab-accordion-heading sp-d-flex sp-align-center eab-heading-059590'\n\t\t\t\t\t\t>\n\t\t\t\t<span class='sp-eab-accordion-header-wrapper sp-d-flex sp-align-center eab-icon-position-end'>\n\t\t\t\t\t<span class='sp-eab-accordion-header-start sp-d-flex sp-justify-left sp-align-center'>\n\t\t\t\t\t\t<span class='sp-eab-title-subtitle-wrapper sp-d-flex'>\n\t\t\t\t\t\t\t<span class='sp-eab-accordion-title-wrapper sp-d-flex sp-align-center'>\n\t\t\t\t\t\t\t\t<span class='sp-eab-accordion-title-text'>\n\t\t\t\t\t\t\t\t\tWhat is a secure email gateway?\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<span class='sp-eab-accordion-header-end eab-icon-animated'>\n\t\t\t\t\t\t\t\t\t\t\t\t<span class='sp-eab-expand-collapse-icon sp-d-block'>\n\t\t\t\t\t\t\t<i class='sp-eab-expand-icon eab-icon-angle-down-solid'><\/i>\n\t\t\t\t\t\t\t<i class='sp-eab-collapse-icon eab-icon-angle-up-solid'><\/i>\n\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t<\/span>\n\t\t\t<\/h3>\n\t\t\t\t\t\t\t<!-- accordion body -->\n\t\t\t\t\t<div class='sp-eab-accordion-content eab-content-059590'>\n\t\t\t\t\t\t\t\t\t\t\t\t<div class='sp-eab-accordion-content-wrapper'>\n\t\t\t\t\t\t\t<div class='sp-eab-accordion-body'>\n\t\t\t    \t\t\t\t\n\n<p class=\"wp-block-paragraph\">A secure email gateway is a filter that screens email before it reaches the mailbox. It checks sender reputation, authentication, links, attachments, and known-bad patterns. It removes most bulk spam and commodity malware.<\/p>\n\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\n\n\t\t\t<div\n\t\t\t\tid =\"sp-eab-item-406ed818019b\"\n\t\t\t\tclass=\"sp-eab-accordion-item eab-item-059590\"\n\t\t\t\t\t\t\t>\n\t\t\t\t<div class=\"sp-eab-accordion-item-wrapper\">\n\t\t\t\t\t\t\t\t<h3 class='sp-eab-accordion-heading sp-d-flex sp-align-center eab-heading-059590'\n\t\t\t\t\t\t>\n\t\t\t\t<span class='sp-eab-accordion-header-wrapper sp-d-flex sp-align-center eab-icon-position-end'>\n\t\t\t\t\t<span class='sp-eab-accordion-header-start sp-d-flex sp-justify-left sp-align-center'>\n\t\t\t\t\t\t<span class='sp-eab-title-subtitle-wrapper sp-d-flex'>\n\t\t\t\t\t\t\t<span class='sp-eab-accordion-title-wrapper sp-d-flex sp-align-center'>\n\t\t\t\t\t\t\t\t<span class='sp-eab-accordion-title-text'>\n\t\t\t\t\t\t\t\t\tWhy do phishing emails get past email filters?\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<span class='sp-eab-accordion-header-end eab-icon-animated'>\n\t\t\t\t\t\t\t\t\t\t\t\t<span class='sp-eab-expand-collapse-icon sp-d-block'>\n\t\t\t\t\t\t\t<i class='sp-eab-expand-icon eab-icon-angle-down-solid'><\/i>\n\t\t\t\t\t\t\t<i class='sp-eab-collapse-icon eab-icon-angle-up-solid'><\/i>\n\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t<\/span>\n\t\t\t<\/h3>\n\t\t\t\t\t\t\t<!-- accordion body -->\n\t\t\t\t\t<div class='sp-eab-accordion-content eab-content-059590'>\n\t\t\t\t\t\t\t\t\t\t\t\t<div class='sp-eab-accordion-content-wrapper'>\n\t\t\t\t\t\t\t<div class='sp-eab-accordion-body'>\n\t\t\t    \t\t\t\t\n\n<p class=\"wp-block-paragraph\">Modern lures avoid the signals filters look for. Attackers send from compromised real accounts, host pages on trusted platforms, omit links and attachments, or arm a link after delivery. Each choice defeats a specific check.<\/p>\n\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\n\n\t\t\t<div\n\t\t\t\tid =\"sp-eab-item-9495e51c96dd\"\n\t\t\t\tclass=\"sp-eab-accordion-item eab-item-059590\"\n\t\t\t\t\t\t\t>\n\t\t\t\t<div class=\"sp-eab-accordion-item-wrapper\">\n\t\t\t\t\t\t\t\t<h3 class='sp-eab-accordion-heading sp-d-flex sp-align-center eab-heading-059590'\n\t\t\t\t\t\t>\n\t\t\t\t<span class='sp-eab-accordion-header-wrapper sp-d-flex sp-align-center eab-icon-position-end'>\n\t\t\t\t\t<span class='sp-eab-accordion-header-start sp-d-flex sp-justify-left sp-align-center'>\n\t\t\t\t\t\t<span class='sp-eab-title-subtitle-wrapper sp-d-flex'>\n\t\t\t\t\t\t\t<span class='sp-eab-accordion-title-wrapper sp-d-flex sp-align-center'>\n\t\t\t\t\t\t\t\t<span class='sp-eab-accordion-title-text'>\n\t\t\t\t\t\t\t\t\tDoes adding a second email security tool fix the problem?\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<span class='sp-eab-accordion-header-end eab-icon-animated'>\n\t\t\t\t\t\t\t\t\t\t\t\t<span class='sp-eab-expand-collapse-icon sp-d-block'>\n\t\t\t\t\t\t\t<i class='sp-eab-expand-icon eab-icon-angle-down-solid'><\/i>\n\t\t\t\t\t\t\t<i class='sp-eab-collapse-icon eab-icon-angle-up-solid'><\/i>\n\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t<\/span>\n\t\t\t<\/h3>\n\t\t\t\t\t\t\t<!-- accordion body -->\n\t\t\t\t\t<div class='sp-eab-accordion-content eab-content-059590'>\n\t\t\t\t\t\t\t\t\t\t\t\t<div class='sp-eab-accordion-content-wrapper'>\n\t\t\t\t\t\t\t<div class='sp-eab-accordion-body'>\n\t\t\t    \t\t\t\t\n\n<p class=\"wp-block-paragraph\">Usually not. A second layer that uses similar signals misses similar threats. Faster human reporting and automated removal of reported mail close more of the gap than another filter does.<\/p>\n\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\n\n\t\t\t<div\n\t\t\t\tid =\"sp-eab-item-f7858874cfe1\"\n\t\t\t\tclass=\"sp-eab-accordion-item eab-item-059590\"\n\t\t\t\t\t\t\t>\n\t\t\t\t<div class=\"sp-eab-accordion-item-wrapper\">\n\t\t\t\t\t\t\t\t<h3 class='sp-eab-accordion-heading sp-d-flex sp-align-center eab-heading-059590'\n\t\t\t\t\t\t>\n\t\t\t\t<span class='sp-eab-accordion-header-wrapper sp-d-flex sp-align-center eab-icon-position-end'>\n\t\t\t\t\t<span class='sp-eab-accordion-header-start sp-d-flex sp-justify-left sp-align-center'>\n\t\t\t\t\t\t<span class='sp-eab-title-subtitle-wrapper sp-d-flex'>\n\t\t\t\t\t\t\t<span class='sp-eab-accordion-title-wrapper sp-d-flex sp-align-center'>\n\t\t\t\t\t\t\t\t<span class='sp-eab-accordion-title-text'>\n\t\t\t\t\t\t\t\t\tWhat is delayed weaponization?\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<span class='sp-eab-accordion-header-end eab-icon-animated'>\n\t\t\t\t\t\t\t\t\t\t\t\t<span class='sp-eab-expand-collapse-icon sp-d-block'>\n\t\t\t\t\t\t\t<i class='sp-eab-expand-icon eab-icon-angle-down-solid'><\/i>\n\t\t\t\t\t\t\t<i class='sp-eab-collapse-icon eab-icon-angle-up-solid'><\/i>\n\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t<\/span>\n\t\t\t<\/h3>\n\t\t\t\t\t\t\t<!-- accordion body -->\n\t\t\t\t\t<div class='sp-eab-accordion-content eab-content-059590'>\n\t\t\t\t\t\t\t\t\t\t\t\t<div class='sp-eab-accordion-content-wrapper'>\n\t\t\t\t\t\t\t<div class='sp-eab-accordion-body'>\n\t\t\t    \t\t\t\t\n\n<p class=\"wp-block-paragraph\">Delayed weaponization means sending a phishing link that is harmless when scanned, then changing it later. Because the secure email gateway checks at delivery, the altered page never gets inspected. The message is already in inboxes by then.<\/p>\n\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\n\n\t\t\t<div\n\t\t\t\tid =\"sp-eab-item-5a04c9fd7341\"\n\t\t\t\tclass=\"sp-eab-accordion-item eab-item-059590\"\n\t\t\t\t\t\t\t>\n\t\t\t\t<div class=\"sp-eab-accordion-item-wrapper\">\n\t\t\t\t\t\t\t\t<h3 class='sp-eab-accordion-heading sp-d-flex sp-align-center eab-heading-059590'\n\t\t\t\t\t\t>\n\t\t\t\t<span class='sp-eab-accordion-header-wrapper sp-d-flex sp-align-center eab-icon-position-end'>\n\t\t\t\t\t<span class='sp-eab-accordion-header-start sp-d-flex sp-justify-left sp-align-center'>\n\t\t\t\t\t\t<span class='sp-eab-title-subtitle-wrapper sp-d-flex'>\n\t\t\t\t\t\t\t<span class='sp-eab-accordion-title-wrapper sp-d-flex sp-align-center'>\n\t\t\t\t\t\t\t\t<span class='sp-eab-accordion-title-text'>\n\t\t\t\t\t\t\t\t\tHow should a company measure email security performance?\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<span class='sp-eab-accordion-header-end eab-icon-animated'>\n\t\t\t\t\t\t\t\t\t\t\t\t<span class='sp-eab-expand-collapse-icon sp-d-block'>\n\t\t\t\t\t\t\t<i class='sp-eab-expand-icon eab-icon-angle-down-solid'><\/i>\n\t\t\t\t\t\t\t<i class='sp-eab-collapse-icon eab-icon-angle-up-solid'><\/i>\n\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t<\/span>\n\t\t\t<\/h3>\n\t\t\t\t\t\t\t<!-- accordion body -->\n\t\t\t\t\t<div class='sp-eab-accordion-content eab-content-059590'>\n\t\t\t\t\t\t\t\t\t\t\t\t<div class='sp-eab-accordion-content-wrapper'>\n\t\t\t\t\t\t\t<div class='sp-eab-accordion-body'>\n\t\t\t    \t\t\t\t\n\n<p class=\"wp-block-paragraph\">Track how many real phishing threats employees report, how fast they report them, and how long removal takes across all mailboxes. Those numbers show the real gap in email security, while a vendor block-rate figure does not.<\/p>\n\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Secure email gateways look for known-bad signals, and modern phishing carries none. See the bypass techniques and how to close the gap that remains.<\/p>\n","protected":false},"author":22,"featured_media":15559,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[45],"tags":[],"class_list":["post-15554","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-email-security"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Why Secure Email Gateways Miss Phishing Attacks<\/title>\n<meta name=\"description\" content=\"Secure email gateways look for known-bad signals, and modern phishing carries none. 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