{"id":2548,"date":"2026-03-29T00:16:44","date_gmt":"2026-03-29T00:16:44","guid":{"rendered":"https:\/\/lightgreen-wombat-810778.hostingersite.com\/?page_id=2548"},"modified":"2026-04-27T16:24:55","modified_gmt":"2026-04-27T16:24:55","slug":"technical-security-audit","status":"publish","type":"page","link":"https:\/\/www.castelis.com\/en\/cybersecurity\/technical-security-audit\/","title":{"rendered":"Technical Security &amp; Audit"},"content":{"rendered":"<section class=\"castelis-hero-banner\" >\n            <div class=\"hero-image-bg\">\n            <img decoding=\"async\" src=\"https:\/\/www.castelis.com\/wp-content\/uploads\/2026\/04\/Cyber1-1-e1776010364555.webp\" alt=\"IS Architecture Audits, Penetration Testing &amp; Security Hardening\">\n        <\/div>\n    \n    <div class=\"container\">\n                        <div class=\"hero-content-wrapper\">\n            <div class=\"hero-content\">\n                                    <h1 class=\"hero-title\">IS Architecture Audits, Penetration Testing &amp; Security Hardening<\/h1>\n                \n                                    <div class=\"hero-description\">\n                        <p>Protecting information systems relies on robust, audited, and proven technical mechanisms. Castelis helps you evaluate, test, and harden your security mechanisms to reduce risks and improve your cyber posture.<\/p>\n\n                    <\/div>\n                \n                                    <div class=\"hero-cta-buttons\">\n                        <a href=\"#contact\" class=\"btn btn-primary\">\n                            <i class=\"fas fa-chevron-right\"><\/i>\n                            <span> Talk to an expert <\/span>\n                        <\/a>\n\n                                            <\/div>\n                \n                            <\/div>\n        <\/div>\n\n        \n            <\/div>\n<\/section>\n\n\n<nav class=\"castelis-toc \"  data-toc-id=\"toc-69f0ad2d7a629\">\n    <div class=\"container\">\n        <div class=\"toc-wrapper\">\n                            <ul class=\"toc-list\">\n                                                                        <li class=\"toc-item\">\n                                <a href=\"#expertise\" class=\"toc-link\">\n                                    Expertise\n                                <\/a>\n                            <\/li>\n                                                                                                <li class=\"toc-item\">\n                                <a href=\"#methodologie\" class=\"toc-link\">\n                                    Methodology\n                                <\/a>\n                            <\/li>\n                                                                                                <li class=\"toc-item\">\n                                <a href=\"#tech-stack\" class=\"toc-link\">\n                                    Tech stack\n                                <\/a>\n                            <\/li>\n                                                                                                <li class=\"toc-item\">\n                                <a href=\"#garanties\" class=\"toc-link\">\n                                    Guarantees\n                                <\/a>\n                            <\/li>\n                                                                                                <li class=\"toc-item\">\n                                <a href=\"#faq\" class=\"toc-link\">\n                                    FAQ\n                                <\/a>\n                            <\/li>\n                                                                                                <li class=\"toc-item\">\n                                <a href=\"#contact\" class=\"toc-link\">\n                                    Contact\n                                <\/a>\n                            <\/li>\n                                                            <\/ul>\n                    <\/div>\n    <\/div>\n<\/nav>\n\n<section class=\"castelis-cards-panel alignment-vertical bg-black heading-left\"  id=\"expertise\" >\n    <div class=\"container\">\n                    <div class=\"cards-panel-header\">\n                                    <div class=\"cards-panel-heading\">\n                        <span class=\"slash-prefix\">\/<\/span>\n                        <h2>Evaluate and strengthen your IS<\/h2>\n                    <\/div>\n                                \n                                    <div class=\"cards-panel-description\">\n                        <p>IS robustness is not declared, it is tested. We address the technical foundations of your security to identify vulnerabilities, test defenses, and reinforce protection mechanisms.<\/p>\n\n                    <\/div>\n                            <\/div>\n                \n                    <div class=\"cards-grid cards-grid-3\">\n                                    <div class=\"card-item\">\n                                                    \n                            <div class=\"card-icon\">\n                                                                    <img decoding=\"async\" src=\"https:\/\/www.castelis.com\/wp-content\/uploads\/2025\/12\/Icon-5.svg\" alt=\"IS Architecture Audit\" \/>\n                                                            <\/div>\n                            \n                                                            <h3 class=\"card-title\">IS Architecture Audit<\/h3>\n                                                        \n                                                            <p class=\"card-description\">Analysis of network and system architectures to assess the coherence, segmentation, and overall robustness of the IS against threats.<\/p>\n                                                        \n                                                        \n                                                                        <\/div>\n                                    <div class=\"card-item\">\n                                                    \n                            <div class=\"card-icon\">\n                                                                    <img decoding=\"async\" src=\"https:\/\/www.castelis.com\/wp-content\/uploads\/2025\/12\/Icon-5.svg\" alt=\"Configuration Audit\" \/>\n                                                            <\/div>\n                            \n                                                            <h3 class=\"card-title\">Configuration Audit<\/h3>\n                                                        \n                                                            <p class=\"card-description\">Evaluation of system, equipment, and application configurations to identify gaps, weaknesses, and configuration-related risks.<\/p>\n                                                        \n                                                        \n                                                                        <\/div>\n                                    <div class=\"card-item\">\n                                                    \n                            <div class=\"card-icon\">\n                                                                    <img decoding=\"async\" src=\"https:\/\/www.castelis.com\/wp-content\/uploads\/2025\/12\/Icon-5.svg\" alt=\"Application &amp; Code Audit\" \/>\n                                                            <\/div>\n                            \n                                                            <h3 class=\"card-title\">Application &amp; Code Audit<\/h3>\n                                                        \n                                                            <p class=\"card-description\">Analysis of applications and source code to detect vulnerabilities, bad practices, and security risks from the development phase.<\/p>\n                                                        \n                                                        \n                                                                        <\/div>\n                                    <div class=\"card-item\">\n                                                    \n                            <div class=\"card-icon\">\n                                                                    <img decoding=\"async\" src=\"https:\/\/www.castelis.com\/wp-content\/uploads\/2025\/12\/Icon-5.svg\" alt=\"Security Deployment\" \/>\n                                                            <\/div>\n                            \n                                                            <h3 class=\"card-title\">Security Deployment<\/h3>\n                                                        \n                                                            <p class=\"card-description\">Integration of security solutions for workstations, servers, networks, and applications to strengthen protection against known and emerging threats.<\/p>\n                                                        \n                                                        \n                                                                        <\/div>\n                                    <div class=\"card-item\">\n                                                    \n                            <div class=\"card-icon\">\n                                                                    <img decoding=\"async\" src=\"https:\/\/www.castelis.com\/wp-content\/uploads\/2025\/12\/Icon-5.svg\" alt=\"Penetration Testing\" \/>\n                                                            <\/div>\n                            \n                                                            <h3 class=\"card-title\">Penetration Testing<\/h3>\n                                                        \n                                                            <p class=\"card-description\">Real-world attack simulations to assess system resistance and measure risk exposure.<\/p>\n                                                        \n                                                        \n                                                                        <\/div>\n                                    <div class=\"card-item\">\n                                                    \n                            <div class=\"card-icon\">\n                                                                    <img decoding=\"async\" src=\"https:\/\/www.castelis.com\/wp-content\/uploads\/2025\/12\/Icon-5.svg\" alt=\"Purple Exercise\" \/>\n                                                            <\/div>\n                            \n                                                            <h3 class=\"card-title\">Purple Exercise<\/h3>\n                                                        \n                                                            <p class=\"card-description\">Collaborative Red Team \/ Blue Team exercises to test detection capabilities and improve existing defense mechanisms.<\/p>\n                                                        \n                                                        \n                                                                        <\/div>\n                            <\/div>\n            <\/div>\n<\/section>\n\n\n<section class=\"castelis-methodology-timeline\"  id=\"methodologie\" >\n    <div class=\"container\">\n                    <h2 class=\"methodology-heading\">\n                <span class=\"slash-prefix\">\/<\/span>\n                A structured and targeted technical approach\n            <\/h2>\n        \n        <div class=\"methodology-content\">\n            \n            <div class=\"methodology-left \">   \n                                    <div class=\"methodology-subheading\">\n                        <p>Our methodology relies on a progressive and pragmatic approach, making it possible to diagnose existing systems, test security under real conditions, and effectively strengthen technical mechanisms.<\/p>\n\n                    <\/div>\n                                                    <div class=\"timeline-wrapper\">\n                        <div class=\"timeline-line\"><\/div>\n                        \n                                                    <div class=\"timeline-step\">\n                                <div class=\"timeline-step-number\">\n                                    <span>1<\/span>\n                                <\/div>\n                                \n                                <div class=\"timeline-step-content\">\n                                                                            <h3 class=\"timeline-step-title\">Scoping<\/h3>\n                                                                        \n                                                                            <p class=\"timeline-step-description\">Definition of scope, security objectives, and technical constraints of the audited environment.<\/p>\n                                                                        \n                                                                            <div class=\"timeline-step-tags\">\n                                                                                            <span class=\"timeline-tag\">Scope<\/span>\n                                                                                            <span class=\"timeline-tag\">Objectives<\/span>\n                                                                                    <\/div>\n                                                                    <\/div>\n                            <\/div>\n                                                    <div class=\"timeline-step\">\n                                <div class=\"timeline-step-number\">\n                                    <span>2<\/span>\n                                <\/div>\n                                \n                                <div class=\"timeline-step-content\">\n                                                                            <h3 class=\"timeline-step-title\">Technical Analysis<\/h3>\n                                                                        \n                                                                            <p class=\"timeline-step-description\">Conducting architecture, configuration, and application audits to identify critical vulnerabilities and risk areas.<\/p>\n                                                                        \n                                                                            <div class=\"timeline-step-tags\">\n                                                                                            <span class=\"timeline-tag\">Audit<\/span>\n                                                                                            <span class=\"timeline-tag\">Architecture<\/span>\n                                                                                    <\/div>\n                                                                    <\/div>\n                            <\/div>\n                                                    <div class=\"timeline-step\">\n                                <div class=\"timeline-step-number\">\n                                    <span>3<\/span>\n                                <\/div>\n                                \n                                <div class=\"timeline-step-content\">\n                                                                            <h3 class=\"timeline-step-title\">Targeted Hardening<\/h3>\n                                                                        \n                                                                            <p class=\"timeline-step-description\">Implementation or adjustment of technical protection mechanisms based on identified vulnerabilities.<\/p>\n                                                                        \n                                                                            <div class=\"timeline-step-tags\">\n                                                                                            <span class=\"timeline-tag\">Protection<\/span>\n                                                                                            <span class=\"timeline-tag\">Security<\/span>\n                                                                                    <\/div>\n                                                                    <\/div>\n                            <\/div>\n                                                    <div class=\"timeline-step\">\n                                <div class=\"timeline-step-number\">\n                                    <span>4<\/span>\n                                <\/div>\n                                \n                                <div class=\"timeline-step-content\">\n                                                                            <h3 class=\"timeline-step-title\">Security Testing<\/h3>\n                                                                        \n                                                                            <p class=\"timeline-step-description\">Penetration tests or Purple Team exercises to assess the real resistance of the IS after hardening.<\/p>\n                                                                        \n                                                                            <div class=\"timeline-step-tags\">\n                                                                                            <span class=\"timeline-tag\">Pentest<\/span>\n                                                                                            <span class=\"timeline-tag\">Purple Team<\/span>\n                                                                                    <\/div>\n                                                                    <\/div>\n                            <\/div>\n                                                    <div class=\"timeline-step\">\n                                <div class=\"timeline-step-number\">\n                                    <span>5<\/span>\n                                <\/div>\n                                \n                                <div class=\"timeline-step-content\">\n                                                                            <h3 class=\"timeline-step-title\">Reporting &amp; Prioritization<\/h3>\n                                                                        \n                                                                            <p class=\"timeline-step-description\">Results analysis, clear vulnerability reporting, and prioritization of corrective actions in the short and medium term.<\/p>\n                                                                        \n                                                                            <div class=\"timeline-step-tags\">\n                                                                                            <span class=\"timeline-tag\">Report<\/span>\n                                                                                            <span class=\"timeline-tag\">Risks<\/span>\n                                                                                    <\/div>\n                                                                    <\/div>\n                            <\/div>\n                                            <\/div>\n                \n                            <\/div>\n\n            \n                    <\/div>\n    <\/div>\n<\/section>\n\n\n<section class=\"castelis-tech-stack\"  id=\"tech-stack\" >\n    <div class=\"container\">\n                    <h2 class=\"tech-stack-heading\">\n                <span class=\"slash-prefix\">\/<\/span>\n                Tech stack\n            <\/h2>\n        \n                    <div class=\"tech-stack-description\">\n                <p>Our interventions rely on proven protection, audit, and testing tools, selected for their effectiveness and adapted to the real constraints of your information system.<\/p>\n\n            <\/div>\n        \n                    <div class=\"tech-stack-tools\">\n                                                            <span class=\"tech-tool\">Fortinet<\/span>\n                                                                                <span class=\"tech-tool\">Cloudflare<\/span>\n                                                                                <span class=\"tech-tool\">CrowdStrike<\/span>\n                                                                                <span class=\"tech-tool\">&#8230;<\/span>\n                                                <\/div>\n        \n                    <div class=\"tech-stack-info\">\n                                    <img decoding=\"async\" src=\"https:\/\/www.castelis.com\/wp-content\/uploads\/2025\/12\/Icon-6.svg\" alt=\"Icon\" class=\"info-icon\">\n                                <span class=\"info-text\">Tools selected for their effectiveness, without technological overkill.<\/span>\n            <\/div>\n        \n            <\/div>\n<\/section>\n\n\n<section class=\"castelis-content-image frameless\" >\n    <div class=\"container align-items-center\"> \n        \n        <div class=\"order-2 content-wrapper \">\n            \n                        \n                        \n                    <\/div>\n        \n        \n        <div class=\"order-1 image-style-background \">\n                    <\/div>\n    <\/div>\n<\/section>\n\n\n<section class=\"castelis-faq\"  id=\"faq\" >\n    <div class=\"container\">\n        <h2 class=\"faq-title\">\n            <span class=\"slash-prefix\">\/<\/span>\n            <div>Frequently asked questions \u2014 technical security<\/div>\n        <\/h2>\n    <\/div>\n        \n            <div class=\"faq-accordion\">\n                                            \n                <div class=\"faq-item active\">\n                    <div class=\"container\">\n                        <button \n                            class=\"faq-question\" \n                            type=\"button\"\n                            aria-expanded=\"true\"\n                            aria-controls=\"faq-faq-0\"\n                            onclick=\"this.closest('.faq-item').classList.toggle('active'); this.setAttribute('aria-expanded', this.getAttribute('aria-expanded') === 'true' ? 'false' : 'true');\"\n                        >\n                            <h3>When should security audits be performed?<\/h3>\n                            <i class=\"faq-icon\"><\/i>\n                        <\/button>\n                    <\/div>\n                    <div \n                        class=\"faq-answer\" \n                        id=\"faq-faq-0\"\n                        role=\"region\"\n                    >\n                        <div class=\"container\">\n                            <div class=\"faq-answer-content\">\n                                <p>Audits are recommended during major IS changes, before a sensitive production release, or on a regular basis to maintain an adequate level of security against current threats.<\/p>\n\n                            <\/div>\n                        <\/div>\n                    <\/div>\n                <\/div>\n                                            \n                <div class=\"faq-item \">\n                    <div class=\"container\">\n                        <button \n                            class=\"faq-question\" \n                            type=\"button\"\n                            aria-expanded=\"false\"\n                            aria-controls=\"faq-faq-1\"\n                            onclick=\"this.closest('.faq-item').classList.toggle('active'); this.setAttribute('aria-expanded', this.getAttribute('aria-expanded') === 'true' ? 'false' : 'true');\"\n                        >\n                            <h3>Are penetration tests disruptive to production?<\/h3>\n                            <i class=\"faq-icon\"><\/i>\n                        <\/button>\n                    <\/div>\n                    <div \n                        class=\"faq-answer\" \n                        id=\"faq-faq-1\"\n                        role=\"region\"\n                    >\n                        <div class=\"container\">\n                            <div class=\"faq-answer-content\">\n                                <p>Tests are framed in advance to minimize impact on production. Depending on the context, they can be performed outside of production or with appropriate precautions.<\/p>\n\n                            <\/div>\n                        <\/div>\n                    <\/div>\n                <\/div>\n                                            \n                <div class=\"faq-item \">\n                    <div class=\"container\">\n                        <button \n                            class=\"faq-question\" \n                            type=\"button\"\n                            aria-expanded=\"false\"\n                            aria-controls=\"faq-faq-2\"\n                            onclick=\"this.closest('.faq-item').classList.toggle('active'); this.setAttribute('aria-expanded', this.getAttribute('aria-expanded') === 'true' ? 'false' : 'true');\"\n                        >\n                            <h3>What is the purpose of a Purple Team exercise?<\/h3>\n                            <i class=\"faq-icon\"><\/i>\n                        <\/button>\n                    <\/div>\n                    <div \n                        class=\"faq-answer\" \n                        id=\"faq-faq-2\"\n                        role=\"region\"\n                    >\n                        <div class=\"container\">\n                            <div class=\"faq-answer-content\">\n                                <p>Purple Team brings together offensive and defensive teams to improve attack detection and strengthen response capabilities, in a pedagogical and continuous improvement approach.<\/p>\n\n                            <\/div>\n                        <\/div>\n                    <\/div>\n                <\/div>\n                    <\/div>\n    <\/section>\n\n\n<section class=\"castelis-contact-form\"  id=\"contact\" >\n    <div class=\"container\">   \n                    <div class=\"contact-tag hashtag-title\">CONTACT<\/div>\n        \n                    <h2 class=\"contact-heading\">Let&#039;s talk about your project<\/h2>\n        \n        \n        <div class=\"contact-wrapper\">\n            \n            <div class=\"contact-form-side\">\n                                    <div class=\"contact-form-container\">\n                        \n\t\t\t\t\t\t<script>\n\t\t\t\t\t\t\twindow.hsFormsOnReady = window.hsFormsOnReady || [];\n\t\t\t\t\t\t\twindow.hsFormsOnReady.push(()=>{\n\t\t\t\t\t\t\t\thbspt.forms.create({\n\t\t\t\t\t\t\t\t\tportalId: 9318812,\n\t\t\t\t\t\t\t\t\tformId: \"312183e0-8b6c-488d-ac79-af4a4fbc82fe\",\n\t\t\t\t\t\t\t\t\ttarget: \"#hbspt-form-1777380653000-1297556351\",\n\t\t\t\t\t\t\t\t\tregion: \"na1\",\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t})});\n\t\t\t\t\t\t<\/script>\n\t\t\t\t\t\t<div class=\"hbspt-form\" id=\"hbspt-form-1777380653000-1297556351\"><\/div>\n   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class=\"reason-item\">\n                                    <i class=\"green-icon-bg\"><\/i>\n                                    <div class=\"reason-content\">\n                                        <h4 class=\"reason-title\">Proven method<\/h4>\n                                        <div class=\"reason-description\">100+ projects delivered, 95% client satisfaction, deadlines met<\/div>\n                                    <\/div>\n                                <\/div>\n                                                            <div class=\"reason-item\">\n                                    <i class=\"green-icon-bg\"><\/i>\n                                    <div class=\"reason-content\">\n                                        <h4 class=\"reason-title\">Ongoing support<\/h4>\n                                        <div class=\"reason-description\">TMA available, team training, 24\/7 monitoring<\/div>\n                                    <\/div>\n                            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<\/section>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":2404,"parent":2521,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"content-type":"","footnotes":""},"class_list":["post-2548","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.castelis.com\/en\/wp-json\/wp\/v2\/pages\/2548","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.castelis.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.castelis.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.castelis.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.castelis.com\/en\/wp-json\/wp\/v2\/comments?post=2548"}],"version-history":[{"count":3,"href":"https:\/\/www.castelis.com\/en\/wp-json\/wp\/v2\/pages\/2548\/revisions"}],"predecessor-version":[{"id":2552,"href":"https:\/\/www.castelis.com\/en\/wp-json\/wp\/v2\/pages\/2548\/revisions\/2552"}],"up":[{"embeddable":true,"href":"https:\/\/www.castelis.com\/en\/wp-json\/wp\/v2\/pages\/2521"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.castelis.com\/en\/wp-json\/wp\/v2\/media\/2404"}],"wp:attachment":[{"href":"https:\/\/www.castelis.com\/en\/wp-json\/wp\/v2\/media?parent=2548"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}