{"id":15400,"date":"2020-04-24T14:07:50","date_gmt":"2020-04-24T19:07:50","guid":{"rendered":"https:\/\/www.firewalls.com\/blog\/?p=15400"},"modified":"2026-03-11T10:46:43","modified_gmt":"2026-03-11T15:46:43","slug":"what-is-a-firewall","status":"publish","type":"post","link":"https:\/\/www.firewalls.com\/blog\/what-is-a-firewall\/","title":{"rendered":"What Is a Firewall and Why Does My Business Need One in 2026?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"15400\" class=\"elementor elementor-15400\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8fed1bb e-flex e-con-boxed e-con e-parent\" data-id=\"8fed1bb\" 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-b4b2094 elementor-widget elementor-widget-text-editor\" data-id=\"b4b2094\" 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;\">Looking past the surface of the question, what is a firewall, comes with a very layered answer. In short, a firewall monitors and controls incoming and outgoing network traffic. This is based on predefined security rules, and the hardware acts as a protective barrier for your internal network. However, it\u2019s much more than just protecting data and network traffic.<\/span><\/p><p><span style=\"font-weight: 400;\">Whether it\u2019s blocking unauthorized access, malware threats, or malicious traffic, <\/span><a href=\"https:\/\/www.firewalls.com\/category\/firewalls.html\"><span style=\"font-weight: 400;\">next-gen firewalls<\/span><\/a><span style=\"font-weight: 400;\"> come with a broad range of capabilities. For example, many of today\u2019s security hardware models come with cloud-management or AI-driven features. Overall, this article offers direct insight into the question of what a firewall is and why your business needs one in 2026.<\/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-bc4285d elementor-widget elementor-widget-heading\" data-id=\"bc4285d\" 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\">Key Takeaways:\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4f04d1a elementor-widget elementor-widget-text-editor\" data-id=\"4f04d1a\" 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<ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A firewall monitors and controls network traffic, protecting businesses from unauthorized access and cyber threats<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Modern firewall hardware includes AI-driven, cloud-managed, and next-gen features for advanced threat protection<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Proper configuration reduces the attack surface, enforces segmentation, and optimizes network performance<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">These devices come in desktop, rackmount, and virtual forms, with solutions <\/span><a href=\"https:\/\/www.firewalls.com\/blog\/small-business-network-security-providers\/\"><span style=\"font-weight: 400;\">for small businesses<\/span><\/a><span style=\"font-weight: 400;\"> to enterprise networks<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">NGFWs add deep packet inspection, app-level control, and real-time threat intelligence<\/span><\/li><\/ul>\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-e8f9a95 elementor-widget elementor-widget-heading\" data-id=\"e8f9a95\" 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\">How Firewall Devices Work?\n<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5c14252 elementor-widget elementor-widget-text-editor\" data-id=\"5c14252\" 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;\">Inspecting inbound and outbound traffic, a firewall device determines what should be allowed or blocked. There are several factors at play in this equation, from packet filtering to stateful inspection to validate connections and enforce security policies. Whether you\u2019re looking at <\/span><a href=\"https:\/\/www.firewalls.com\/brands\/fortinet\/fortinet-firewall\/enterprise.html\"><span style=\"font-weight: 400;\">Fortinet FortiGate<\/span><\/a><span style=\"font-weight: 400;\">, SonicWall, or any other trusted manufacturer, it\u2019s important to understand how the tech works.<\/span><\/p><p><span style=\"font-weight: 400;\">Here are a few core angles on how the hardware works:<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Enhance protection with deep packet inspection to analyze packet contents<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Enabling app-level control, encrypted traffic inspection, and intrusion prevention<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Solutions like the SonicWall NSa series deliver advanced threat protection at scale<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">SSL\/TLS inspection decrypts and inspects encrypted traffic to detect hidden threats<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Divides networks into secure zones to prevent lateral movement during a breach<\/span><\/li><\/ul><p><span style=\"font-weight: 400;\">The list keeps going, as multi-layered network security solutions are more important than ever before. You have a lot to choose from. Whether you\u2019re a small business starting out with the SonicWall TZ series or an enterprise that relies on <\/span><a href=\"https:\/\/www.firewalls.com\/brands\/sonicwall\/firewalls\/nsa.html\"><span style=\"font-weight: 400;\">their NSa NGFWs<\/span><\/a><span style=\"font-weight: 400;\">, security and scalability won\u2019t be an issue.<\/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-721f7e4 elementor-widget elementor-widget-image\" data-id=\"721f7e4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.firewalls.com\/category\/firewalls.html\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"900\" height=\"150\" src=\"https:\/\/www.firewalls.com\/blog\/wp-content\/uploads\/2025\/01\/Blog-Banner-General-Buy-Now-Red-High-Quality.jpg\" class=\"attachment-full size-full wp-image-18860\" alt=\"Blog-Banner-General-Buy-Now-Red-High-Quality\" srcset=\"https:\/\/www.firewalls.com\/blog\/wp-content\/uploads\/2025\/01\/Blog-Banner-General-Buy-Now-Red-High-Quality.jpg 900w, https:\/\/www.firewalls.com\/blog\/wp-content\/uploads\/2025\/01\/Blog-Banner-General-Buy-Now-Red-High-Quality-300x50.jpg 300w, https:\/\/www.firewalls.com\/blog\/wp-content\/uploads\/2025\/01\/Blog-Banner-General-Buy-Now-Red-High-Quality-768x128.jpg 768w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\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-73122cf elementor-widget elementor-widget-spacer\" data-id=\"73122cf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\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-8e8d219 elementor-widget elementor-widget-heading\" data-id=\"8e8d219\" 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\">Why Proper Firewall Configuration Matters\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2363c76 elementor-widget elementor-widget-text-editor\" data-id=\"2363c76\" 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;\">Default hardware settings aren\u2019t tailored to your business&#8217;s specific network demands. That\u2019s why custom configuration is so important. It reduces unnecessary exposure and closes unused ports and services, too.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A proper setup minimizes the attack surface with the help of segmentation, as well as <\/span><a href=\"https:\/\/www.firewalls.com\/blog\/sonicwall-ssl-vpn-license-vs-cloud-edge-security\/\"><span style=\"font-weight: 400;\">least-privileged access<\/span><\/a><span style=\"font-weight: 400;\"> controls. Optimized configurations improve performance by balancing security inspection alongside network efficiency.&nbsp;<\/span><\/p>\n<p><span style=\"font-weight: 400;\">After configuration is handled, it\u2019s equally important to lean into ongoing maintenance, updates, and policy adjustments. Of course, with the many types of firewall solutions available, there isn\u2019t always a universal approach to configuration either.<\/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-68387bd elementor-widget elementor-widget-heading\" data-id=\"68387bd\" 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\">Types of Firewall Devices and Hardware\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-24bb801 elementor-widget elementor-widget-text-editor\" data-id=\"24bb801\" 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;\">There are different form factors when it comes to firewall options, such as desktop, rackmount, and virtual solutions. From there, you\u2019re looking at models that range from small business applications to enterprise-grade security.\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">At the end of the day, you\u2019ll go through quite a few considerations before you end up with the right hardware. The table below offers a quick look at the various types of firewall devices and what they\u2019re suited for.<\/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-c9ae5ae elementor-widget elementor-widget-shortcode\" data-id=\"c9ae5ae\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">\n<table id=\"tablepress-141\" class=\"tablepress tablepress-id-141\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">Category<\/th><th class=\"column-2\">Type<\/th><th class=\"column-3\">Best For<\/th><th class=\"column-4\">Key Features<\/th><th class=\"column-5\">Example Solutions<\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"row-striping row-hover\">\n<tr class=\"row-2\">\n\t<td class=\"column-1\">Form Factor<\/td><td class=\"column-2\">Desktop firewall<\/td><td class=\"column-3\">Small offices<\/td><td class=\"column-4\">Compact, easy deployment, basic-to-advanced security features<\/td><td class=\"column-5\">Entry-level business appliances<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">Rackmount Firewall<\/td><td class=\"column-3\">Data centers and IT rooms<\/td><td class=\"column-4\">High throughput, scalable interfaces, and integrates into server racks<\/td><td class=\"column-5\">Mid-to-enterprise appliances<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">Virtual Firewall<\/td><td class=\"column-3\">Cloud and hybrid networks<\/td><td class=\"column-4\">Software-based, scalable, protects virtual workloads<\/td><td class=\"column-5\">Cloud-native deployment<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">Sizing<\/td><td class=\"column-2\">Small business<\/td><td class=\"column-3\">Up to a few hundred users<\/td><td class=\"column-4\">VPN, IPS, web filtering, moderate bandwidth support<\/td><td class=\"column-5\">SMB-focused devices<\/td>\n<\/tr>\n<tr class=\"row-6\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">Mid-sized<\/td><td class=\"column-3\">Scaling organizations<\/td><td class=\"column-4\">Higher throughput, deep inspection, expanded user capacity<\/td><td class=\"column-5\">SonicWall TZ and Sophos firewall options<\/td>\n<\/tr>\n<tr class=\"row-7\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">Enterprise<\/td><td class=\"column-3\">2,500+ user networks<\/td><td class=\"column-4\">Multi-gig performance, AI-driven protection, rich feature sets<\/td><td class=\"column-5\">Fortinet FortiGate firewalls, SonicWall NSa, and enterprise-level Sophos models<\/td>\n<\/tr>\n<tr class=\"row-8\">\n\t<td class=\"column-1\">Generations<\/td><td class=\"column-2\">Stateful inspection<\/td><td class=\"column-3\">Basic network security<\/td><td class=\"column-4\">Tracks sessions, signature-based filtering<\/td><td class=\"column-5\">Traditional firewalls<\/td>\n<\/tr>\n<tr class=\"row-9\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">UTM<\/td><td class=\"column-3\">simplified management<\/td><td class=\"column-4\">Combines AV, IPS, and web filtering in one appliance<\/td><td class=\"column-5\">All-in-one security devices<\/td>\n<\/tr>\n<tr class=\"row-10\">\n\t<td class=\"column-1\"><\/td><td class=\"column-2\">NGFW<\/td><td class=\"column-3\">Advanced threat defense<\/td><td class=\"column-4\">DPI, AI\/ML detection, real-time threat intelligence<\/td><td class=\"column-5\">Leading manufacturers like Fortinet, SonicWall, Sophos, WatchGuard, and Cisco Meraki<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-141 from cache --><\/div>\n\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<div class=\"elementor-element elementor-element-dc08a8a e-flex e-con-boxed e-con e-parent\" data-id=\"dc08a8a\" 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-a518736 elementor-widget elementor-widget-text-editor\" data-id=\"a518736\" 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 can be a lot to take in, especially with the many options between stellar <\/span><a href=\"https:\/\/www.firewalls.com\/brands\/sophos\/firewalls\/xgs-firewalls.html\"><span style=\"font-weight: 400;\">providers like Sophos<\/span><\/a><span style=\"font-weight: 400;\">, SonicWall, Fortinet, and more. This is more important than ever, considering the expanding threat landscape and the growing reliance on digital systems, tools, and platforms.<\/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-57de7fd elementor-widget elementor-widget-heading\" data-id=\"57de7fd\" 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-6a2a9c4 elementor-widget elementor-widget-text-editor\" data-id=\"6a2a9c4\" 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;\">Modern firewalls act as intelligent security gateways, protecting networks, users, and applications beyond basic traffic filtering. There\u2019s a long list of hardware and virtual security solutions from today\u2019s leading manufacturers, with support for all types of operations in mind.<\/span><\/p><p><span style=\"font-weight: 400;\">However, answering the question, what is a firewall, will always require a combined and layered approach. From the hardware you choose to configuration, security policies, and scalable strategies, it all plays a role in your business network. Don\u2019t hesitate to <\/span><a href=\"https:\/\/www.firewalls.com\/contact\"><span style=\"font-weight: 400;\">reach out to our team<\/span><\/a><span style=\"font-weight: 400;\"> at Firewalls.com to learn more about the solutions and services that are best suited for your long-term security demands.<\/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-0591068 elementor-widget elementor-widget-button\" data-id=\"0591068\" 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-9df279c elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"9df279c\" 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-14a5c9a elementor-widget elementor-widget-heading\" data-id=\"14a5c9a\" 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-989b728 elementor-widget elementor-widget-n-accordion\" data-id=\"989b728\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;default_state&quot;:&quot;expanded&quot;,&quot;max_items_expended&quot;:&quot;one&quot;,&quot;n_accordion_animation_duration&quot;:{&quot;unit&quot;:&quot;ms&quot;,&quot;size&quot;:400,&quot;sizes&quot;:[]}}\" data-widget_type=\"nested-accordion.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"e-n-accordion\" aria-label=\"Accordion. Open links with Enter or Space, close with Escape, and navigate with Arrow Keys\">\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1600\" class=\"e-n-accordion-item\" open>\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"1\" tabindex=\"0\" aria-expanded=\"true\" aria-controls=\"e-n-accordion-item-1600\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> What is a Firewall and Why is it Important for my Business? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1600\" class=\"elementor-element elementor-element-70cb536 e-con-full e-flex e-con e-child\" data-id=\"70cb536\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d45b7cc elementor-widget elementor-widget-text-editor\" data-id=\"d45b7cc\" 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;\">A firewall is a network security device that monitors and controls incoming and outgoing traffic based on predefined rules. It helps protect your business from unauthorized access, malware, and other cyber threats.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1601\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"2\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1601\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> What Types of Firewall Hardware are Available? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1601\" class=\"elementor-element elementor-element-7bcdb0f e-con-full e-flex e-con e-child\" data-id=\"7bcdb0f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6853281 elementor-widget elementor-widget-text-editor\" data-id=\"6853281\" 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;\">Firewalls come in desktop, rackmount, and virtual form factors. There are also many options that range from small business devices to enterprise-grade solutions.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1602\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"3\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1602\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> How do NGFWs Differ From Traditional Solutions? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1602\" class=\"elementor-element elementor-element-57618da e-con-full e-flex e-con e-child\" data-id=\"57618da\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c5d4d0f elementor-widget elementor-widget-text-editor\" data-id=\"c5d4d0f\" 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;\">NGFWs include features like deep packet inspection, AI-driven threat detection, app-level controls, and real-time threat intelligence. This offers much more proactive protection compared to stateful inspection firewalls.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1603\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"4\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1603\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Why is Configuration Important? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1603\" class=\"elementor-element elementor-element-d3343a2 e-flex e-con-boxed e-con e-child\" data-id=\"d3343a2\" 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-0c78574 elementor-widget elementor-widget-text-editor\" data-id=\"0c78574\" 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;\">Default firewall settings are generic and may leave your network open to vulnerabilities. Proper configuration minimizes the attack surface, enforces segmentation, and optimizes performance while adapting to your company&#8217;s unique network demands.<\/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\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-1604\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"5\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-1604\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Can Firewalls Protect Cloud Apps and Remote Workers? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-1604\" class=\"elementor-element elementor-element-30644ec e-flex e-con-boxed e-con e-child\" data-id=\"30644ec\" 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-23d6a75 elementor-widget elementor-widget-text-editor\" data-id=\"23d6a75\" 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;\">Yes, modern firewalls, including virtual and NGFW solutions, secure cloud workloads, SaaS apps, and remote connections. This is all while monitoring traffic and preventing unauthorized access at the same time.<\/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\t<\/details>\n\t\t\t\t\t<\/div>\n\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>What is a firewall &#038; how do they keep small businesses safe? Learn what kinds of firewalls exist &#038; how firewalls work, so you can make an informed decision!<\/p>\n","protected":false},"author":13,"featured_media":27482,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[286,597],"tags":[340,55,51],"class_list":["post-15400","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cybersecurity","category-firewalls","tag-firewall","tag-firewall-configuration","tag-firewalls"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>What Is a Firewall and Why Does My Business Need One in 2026? - Firewalls.com<\/title>\n<meta name=\"description\" content=\"Learn what a firewall is, how it protects your business in 2026, and why proper hardware, configuration, and NGFW solutions are essential.\" \/>\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\/what-is-a-firewall\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What Is a Firewall and Why Does My Business Need One in 2026? 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