{"id":24342,"date":"2025-09-25T07:00:10","date_gmt":"2025-09-25T12:00:10","guid":{"rendered":"https:\/\/www.firewalls.com\/blog\/?p=24342"},"modified":"2026-05-13T10:43:46","modified_gmt":"2026-05-13T15:43:46","slug":"attack-surface-monitoring","status":"publish","type":"post","link":"https:\/\/www.firewalls.com\/blog\/attack-surface-monitoring\/","title":{"rendered":"Attack Surface Monitoring Explained: An Essential for Network Security"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"24342\" class=\"elementor elementor-24342\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-482caba e-flex e-con-boxed e-con e-parent\" data-id=\"482caba\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5450651 elementor-widget elementor-widget-text-editor\" data-id=\"5450651\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Due to our digital age, businesses have more attack surfaces than ever to worry about. This makes way for a lot of entry points, such as devices, cloud apps, APIs, and more. While there\u2019s no argument that digital tools have benefited the workplace, it has also expanded the risk for cyber attacks.<\/span><\/p><p><span style=\"font-weight: 400;\">The topic gets even deeper when you consider the growth of cloud adoption on a global scale. Unfortunately, traditional security architecture isn\u2019t going to help you here, which calls for <\/span><a href=\"https:\/\/www.firewalls.com\/blog\/cybersecurity-requirements-in-2025\/\"><span style=\"font-weight: 400;\">a refined approach<\/span><\/a><span style=\"font-weight: 400;\"> to thorough network security.<\/span><\/p><p><span style=\"font-weight: 400;\">You\u2019ll find many angles to attack surface management tools, as it comes with layers from policy, hardware, and the list goes on. For this article, you\u2019re gaining a better understanding of attack surface monitoring (ASM) and why it\u2019s essential for your business.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1f208d2 elementor-widget elementor-widget-heading\" data-id=\"1f208d2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Understanding Your Attack Surfaces\n<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-903209d elementor-widget elementor-widget-text-editor\" data-id=\"903209d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">It\u2019s important to start off by understanding that attack surfaces are split between internal and external components. An example of internal would be behind your firewall hardware, and external along the lines of public-facing surfaces.\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">Here are a few quick examples of what that might look like:<\/span><b><\/b><\/p><ul><li aria-level=\"1\"><b>External: <\/b><span style=\"font-weight: 400;\">APIs, DNS, websites, and business assets that can be accessed over the internet.<\/span><\/li><li aria-level=\"1\"><b>Internal: <\/b><span style=\"font-weight: 400;\">Employee devices, servers, and internal networks &#8211; generally exploited through lateral movement or phishing attempts<\/span><\/li><\/ul><p><span style=\"font-weight: 400;\">A core part of your attack surface management solutions, ASM security is a must, not something that should be debated. There may have been a time when this wasn\u2019t as viable, but our digital landscape says otherwise.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2651fe3 elementor-widget elementor-widget-heading\" data-id=\"2651fe3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">How Attack Surfaces Have Expanded\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a610bf9 elementor-widget elementor-widget-text-editor\" data-id=\"a610bf9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Seeing how <\/span><a href=\"https:\/\/www.firewalls.com\/blog\/vulnerabilities-with-your-firewall-device\/\"><span style=\"font-weight: 400;\">attack surfaces have expanded<\/span><\/a><span style=\"font-weight: 400;\"> over time is pretty simple when you consider the number of digital tools you use for business operations. Hybrid cloud environments are increasingly common, as well as IoT devices, SaaS platforms, and what\u2019s needed for remote work.<\/span><\/p><p><span style=\"font-weight: 400;\">The traditional idea of a network perimeter is long gone, which has made effective ASM more challenging as things evolve. Another thought-provoking angle is the use of third-party integrations.\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">While these aren\u2019t always a necessity, they\u2019re definitely commonplace. Benefits aside, this also opens up the potential for more unmanaged risks, without the visibility and internal control from your IT department. Whether it\u2019s APIs, unvetted tools, or outdated applications, all of these can be an easy access point for attackers.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f08eaf4 elementor-widget elementor-widget-heading\" data-id=\"f08eaf4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Attack Surface Monitoring in Action\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8017810 elementor-widget elementor-widget-text-editor\" data-id=\"8017810\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Keeping an eye on lateral movement is a big focus point here. To avoid confusion, lateral movement pertains to the process of hackers moving across layers of your network. For many attempts, this is in hopes of gaining access to other connected systems and escalating their network privileges.<\/span><\/p><p><span style=\"font-weight: 400;\">The list below offers some insight into what effective ASM security looks like:<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Identifies lateral movement by monitoring connected assets<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Utilizes real-time scanning, endpoint monitoring, and behavior analytics for rapid response<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Delivers continuous visibility across internal and external environments<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Limits potential damage by identifying threats before they can get too deep in lateral movement\u00a0<\/span><\/li><\/ul><p><span style=\"font-weight: 400;\">Remember that this is just one angle to the whole of your attack surface management. Nevertheless, if you don\u2019t have proper monitoring in place, threats can get out of hand quicker than you think. Firewall and network protection is a dense topic, and ASM is one of many crucial practices in ensuring company data stays under wraps.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-569e054 elementor-widget elementor-widget-heading\" data-id=\"569e054\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">ASM with Network Firewall Protection\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-aa9b1a2 elementor-widget elementor-widget-text-editor\" data-id=\"aa9b1a2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">If you want to accomplish effective, layered security for your network, you\u2019ll want to approach this from several angles. Whereas firewalls control traffic on the network and assist in blocking threats, ASM focuses on real-time vulnerabilities.<\/span><\/p><p><span style=\"font-weight: 400;\">With the integration of next-gen firewalls (NGFWs), your network benefits from advanced features like deep packet inspection, app-level filtering, and a lot more. You also want to take <\/span><a href=\"https:\/\/www.firewalls.com\/blog\/benefits-of-zero-trust-architecture\/\"><span style=\"font-weight: 400;\">zero-trust models<\/span><\/a><span style=\"font-weight: 400;\"> into account. Commonly supported by today\u2019s NGFWs, this guarantees no device or individual user is trusted on the network by default.<\/span><\/p><p><span style=\"font-weight: 400;\">Even with this kind of tech in play, ASM hones in on at-risk assets and any changes happening across your network. This works to make the firewall\u2019s job more effective through contextual security policies and a more dynamic approach to the network overall. The team of ASM and firewalls is just one of many examples as to why multi-layered network security is crucial.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e6ca251 elementor-widget elementor-widget-heading\" data-id=\"e6ca251\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Let\u2019s Wrap Up\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2c1346c elementor-widget elementor-widget-text-editor\" data-id=\"2c1346c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">For those wondering how they should approach ASM for their own business, the focus should be on visibility and agility. Once again, you need layered security solutions to pull this off, such as attack surface management tools, ASM strategy, and NGFWs.<\/span><\/p><p><span style=\"font-weight: 400;\">Implementation of ASM should start with asset discovery, in addition to risk prioritization and real-time monitoring. If you\u2019d like to learn more about ASM and how to integrate it into your network security, come <\/span><a href=\"https:\/\/www.firewalls.com\/contact\"><span style=\"font-weight: 400;\">chat with our team<\/span><\/a><span style=\"font-weight: 400;\"> members for an expert\u2019s opinion on your circumstances.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fd73742 elementor-widget elementor-widget-button\" data-id=\"fd73742\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"tel:3172254117\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Call Now<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-869c1d3 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"869c1d3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-223747f elementor-widget elementor-widget-heading\" data-id=\"223747f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">FAQ<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-37de11f elementor-widget elementor-widget-heading\" data-id=\"37de11f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">What is Attack Surface Monitoring in Cybersecurity?\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-33441ca elementor-widget elementor-widget-text-editor\" data-id=\"33441ca\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">This process focuses on identifying, tracking, and analyzing every entry point across your network. Dealing with both internal and external surfaces, ASM helps keep an eye on any part of the network that could be exploited by attackers.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1acc6ea elementor-widget elementor-widget-heading\" data-id=\"1acc6ea\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Why is ASM Security Important for Network Security?\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1dcc17b elementor-widget elementor-widget-text-editor\" data-id=\"1dcc17b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">It\u2019s important as it plays a significant role in real-time network visibility into potential vulnerabilities and assets that are exposed. Having this benefit gives businesses the power to detect threats early on before lateral movement becomes a problem.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7f50198 elementor-widget elementor-widget-heading\" data-id=\"7f50198\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">How Does Attack Surface Monitoring Work With Firewalls?\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-933ae65 elementor-widget elementor-widget-text-editor\" data-id=\"933ae65\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">By flagging at-risk assets and abnormal behavior on the network, firewalls can effectively enforce access controls. This also leads to better security policies and a layered defense against known or emerging cyber attacks.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-542d9db elementor-widget elementor-widget-heading\" data-id=\"542d9db\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">What are Examples of Internal and External Attack Surfaces?\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1d16ad5 elementor-widget elementor-widget-text-editor\" data-id=\"1d16ad5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Internal surfaces focus on angles like employee devices, servers, and internal networks. With external surfaces, this pertains more to websites, cloud services, APIs, and other public-facing systems your company uses.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Dive into the full scope of attack surface monitoring, what\u2019s included, and the role it plays in your network security architecture.<\/p>\n","protected":false},"author":13,"featured_media":25516,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[286],"tags":[],"class_list":["post-24342","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cybersecurity"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Attack Surface Monitoring Explained - Firewalls.com<\/title>\n<meta name=\"description\" content=\"Dive into the full scope of attack surface monitoring, what\u2019s included, and the role it plays in your network security architecture.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.firewalls.com\/blog\/attack-surface-monitoring\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Attack Surface Monitoring Explained - 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