{"id":194018,"date":"2026-01-28T16:26:52","date_gmt":"2026-01-28T15:26:52","guid":{"rendered":"https:\/\/liora.io\/en\/?p=194018"},"modified":"2026-02-06T07:20:59","modified_gmt":"2026-02-06T06:20:59","slug":"all-about-security-audit","status":"publish","type":"post","link":"https:\/\/liora.io\/en\/all-about-security-audit","title":{"rendered":"Security Audit: What is it? How to Make One?"},"content":{"rendered":"<b>Protecting data and computer systems has become a top priority for businesses. Conducting a security audit is a fundamental step in assessing and enhancing the security of an IT infrastructure. Discover why and how to implement this essential practice.<\/b>\n\n<style><br \/>\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style>\n<h2 class=\"wp-block-heading\" id=\"h-what-is-a-security-audit\">What is a security audit?<\/h2>\n<b>A security audit<\/b> is a thorough and systematic evaluation of a computer system designed to identify <a href=\"https:\/\/liora.io\/en\/all-about-api-vulnerability\">vulnerabilities<\/a> and potential security risks.\n\nThis analysis offers a comprehensive assessment of the infrastructure and suggests appropriate solutions to enhance your protection.\n\n<b>The audit<\/b> can be internal, conducted by your teams, or external, entrusted to specialized experts. Each approach has its benefits, but an external perspective often brings fresh insights and specialized expertise.\n<h2 class=\"wp-block-heading\" id=\"h-why-conduct-a-security-audit\">Why conduct a security audit?<\/h2>\nCybersecurity has become a major challenge for all organizations, regardless of their size. Here are the main reasons to conduct an audit:\n<h3 class=\"wp-block-heading\" id=\"h-protection-against-growing-threats\">Protection against growing threats<\/h3>\n<a href=\"https:\/\/liora.io\/en\/cyber-attacks-definition-and-modus-operandi\">Cyberattacks<\/a> are becoming increasingly sophisticated and frequent. An audit helps identify vulnerabilities before they are exploited by malicious actors.\n<h3 class=\"wp-block-heading\" id=\"h-regulatory-compliance\">Regulatory compliance<\/h3>\nMany <b>regulations<\/b> (<a href=\"https:\/\/liora.io\/en\/understanding-gdpr-definition-and-its-crucial-impact-on-businesses\">GDPR<\/a>, <strong>NIS2<\/strong>, etc.) impose strict requirements for <b>data security<\/b>. The audit helps maintain this compliance.\n<h3 class=\"wp-block-heading\" id=\"h-resource-optimization\">Resource optimization<\/h3>\nAn audit pinpoints <b>priority security investments<\/b> and optimizes the use of existing resources.\n<h2 class=\"wp-block-heading\" id=\"h-what-are-the-objectives\">What are the objectives?<\/h2>\nImplementing a security audit addresses several crucial objectives:\n<ul>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Identify existing <b>security vulnerabilities<\/b> in your system<\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Assess the effectiveness of current <b>security measures<\/b><\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Anticipate <b>potential future risks<\/b><\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Ensure <b>compliance<\/b> with current standards and regulations<\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Protect sensitive data from hackers<\/li>\n<\/ul>\n<style><br \/>\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"448\" src=\"https:\/\/liora.io\/app\/uploads\/sites\/9\/2025\/02\/dst_acquisition_Cybersecurity_team_conducting_a_security_audit__d9a2de66-566f-4f3a-926c-8fcf35d8691d-1024x574.webp\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/liora.io\/app\/uploads\/sites\/9\/2025\/02\/dst_acquisition_Cybersecurity_team_conducting_a_security_audit__d9a2de66-566f-4f3a-926c-8fcf35d8691d-1024x574.webp 1024w, https:\/\/liora.io\/app\/uploads\/sites\/9\/2025\/02\/dst_acquisition_Cybersecurity_team_conducting_a_security_audit__d9a2de66-566f-4f3a-926c-8fcf35d8691d-300x168.webp 300w, https:\/\/liora.io\/app\/uploads\/sites\/9\/2025\/02\/dst_acquisition_Cybersecurity_team_conducting_a_security_audit__d9a2de66-566f-4f3a-926c-8fcf35d8691d-768x430.webp 768w, https:\/\/liora.io\/app\/uploads\/sites\/9\/2025\/02\/dst_acquisition_Cybersecurity_team_conducting_a_security_audit__d9a2de66-566f-4f3a-926c-8fcf35d8691d.webp 1456w\" sizes=\"(max-width: 800px) 100vw, 800px\">\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex is-content-justification-center\"><div class=\"wp-block-button \"><a class=\"wp-block-button__link wp-element-button \" href=\"\/en\/courses\/data-ai\/\">Discover our courses<\/a><\/div><\/div>\n\n<h2 class=\"wp-block-heading\" id=\"h-what-are-the-types-of-security-audit\">What are the types of security audit?<\/h2>\n<h3 class=\"wp-block-heading\" id=\"h-technical-audit\">Technical audit<\/h3>\nThis <b>audit<\/b> focuses on the <b>technical aspects<\/b> of your infrastructure. It includes:\n<ul>\n \t<li>Network configuration analysis<\/li>\n \t<li><b>Penetration testing<\/b><\/li>\n \t<li>Firewall and <a href=\"https:\/\/liora.io\/en\/antivirus-useful-nowadays\">antivirus<\/a> evaluation<\/li>\n \t<li>Verification of <b>updates and patches<\/b><\/li>\n \t<li>System <b>log analysis<\/b><\/li>\n \t<li>Application <b>security assessment<\/b><\/li>\n \t<li>DDoS <a href=\"https:\/\/liora.io\/en\/all-about-ddos-attacks\">attack resistance testing<\/a><\/li>\n<\/ul>\n<h3 class=\"wp-block-heading\" id=\"h-organizational-audit\">Organizational audit<\/h3>\nThis audit examines <b>processes and procedures<\/b> in place:\n<ul>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Security policies<\/b><\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Access <b>management<\/b><\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Backup <b>procedures<\/b><\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Business continuity plans<\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Process documentation<\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Employee training<\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Incident <b>management<\/b><\/li>\n<\/ul>\n<h3 class=\"wp-block-heading\" id=\"h-physical-audit\">Physical audit<\/h3>\nOften overlooked, the physical security audit is nevertheless crucial:\n<ul>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Access control to premises<\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Server room security<\/b><\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Protection against <b>environmental risks<\/b><\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Video surveillance<\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Emergency procedures<\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\" id=\"h-how-to-implement-a-security-audit\">How to implement a security audit?<\/h2>\n<h3 class=\"wp-block-heading\" id=\"h-1-preparation-phase\">1. Preparation phase<\/h3>\nBefore starting the audit, it is essential to clearly define <b>the scope of the intervention<\/b>. This step determines what elements to analyze: <b>servers, applications, networks<\/b>, <a href=\"https:\/\/liora.io\/en\/cybersecurity-the-ultimate-guide\">existing security procedures<\/a>. Proper preparation ensures an effective and relevant audit.\n\n<b>Elements to consider:<\/b>\n<ul>\n \t<li>Inventory of <b>IT assets<\/b><\/li>\n \t<li>List of <b>critical applications<\/b><\/li>\n \t<li><b>Network mapping<\/b><\/li>\n \t<li>Identification of <b>sensitive data<\/b><\/li>\n \t<li>Planning of <b>interventions<\/b><\/li>\n<\/ul>\n<h3 class=\"wp-block-heading\" id=\"h-2-information-gathering\">2. Information gathering<\/h3>\nThis phase involves collecting all relevant data on your <b>computer system<\/b>. Auditors review technical documentation, <b>system configurations<\/b>, and <b>current security practices<\/b>. This also includes interviews with relevant teams.\n\n<b>Sources of information to use:<\/b>\n<ul>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Technical documentation<\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Existing security policies<\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Incident history<\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Previous audit reports<\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">User feedback<\/li>\n<\/ul>\n<img decoding=\"async\" width=\"800\" height=\"448\" src=\"https:\/\/liora.io\/app\/uploads\/sites\/9\/2025\/02\/dst_acquisition_An_auditor_reviewing_security_protocols_on_a_ta_35c45af7-01c8-4b53-be04-1d071872e615-1024x574.webp\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/liora.io\/app\/uploads\/sites\/9\/2025\/02\/dst_acquisition_An_auditor_reviewing_security_protocols_on_a_ta_35c45af7-01c8-4b53-be04-1d071872e615-1024x574.webp 1024w, https:\/\/liora.io\/app\/uploads\/sites\/9\/2025\/02\/dst_acquisition_An_auditor_reviewing_security_protocols_on_a_ta_35c45af7-01c8-4b53-be04-1d071872e615-300x168.webp 300w, https:\/\/liora.io\/app\/uploads\/sites\/9\/2025\/02\/dst_acquisition_An_auditor_reviewing_security_protocols_on_a_ta_35c45af7-01c8-4b53-be04-1d071872e615-768x430.webp 768w, https:\/\/liora.io\/app\/uploads\/sites\/9\/2025\/02\/dst_acquisition_An_auditor_reviewing_security_protocols_on_a_ta_35c45af7-01c8-4b53-be04-1d071872e615.webp 1456w\" sizes=\"(max-width: 800px) 100vw, 800px\">\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex is-content-justification-center\"><div class=\"wp-block-button \"><a class=\"wp-block-button__link wp-element-button \" href=\"\/en\/courses\/data-ai\/\">Find a course for you<\/a><\/div><\/div>\n\n<h3 class=\"wp-block-heading\" id=\"h-3-vulnerability-analysis\">3. Vulnerability analysis<\/h3>\nThis is the core of the <b>IT security audit<\/b>. Experts use specialized tools to detect <b>potential security weaknesses<\/b>. They test your systems\u2019 resilience against various forms of attacks. This in-depth analysis maps out all the risks.\n\n<b>Analysis methods:<\/b>\n<ul>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Vulnerability scans<\/b><\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Intrusion tests<\/b><\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Code analysis<\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Penetration testing<\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Attack simulation<\/li>\n<\/ul>\n<h3 class=\"wp-block-heading\" id=\"h-4-risk-assessment\">4. Risk assessment<\/h3>\nOnce vulnerabilities are identified, auditors assess their criticality and potential impact on your operations. This analysis helps prioritize actions to be taken. Each risk is classified according to its importance and likelihood of occurrence.\n<h2 class=\"wp-block-heading\" id=\"h-the-tools-used-during-a-security-audit\">The tools used during a security audit<\/h2>\n<h3 class=\"wp-block-heading\" id=\"h-vulnerability-scanning-tools\"><b>Vulnerability scanning tools<\/b><\/h3>\n<ul>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Nmap<\/b>, one of the <a href=\"https:\/\/liora.io\/en\/all-about-kali-linux\">Kali Linux<\/a> tools, for network analysis<\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Metasploit<\/b> for penetration testing<\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Wireshark<\/b> for traffic analysis<\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><b>OpenVAS<\/b> for vulnerability detection<\/li>\n<\/ul>\n<h3 class=\"wp-block-heading\" id=\"h-code-analysis-tools\"><b>Code analysis tools<\/b><\/h3>\n<ul>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">SonarQube for static analysis<\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">OWASP<b> ZAP<\/b> for web application security<\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Checkmarx<\/b> for source code analysis<\/li>\n<\/ul>\n<h3 class=\"wp-block-heading\" id=\"h-monitoring-tools\"><b>Monitoring tools<\/b><\/h3>\n<ul>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><a href=\"https:\/\/liora.io\/en\/all-about-nagios\">Nagios<\/a> for <b>system monitoring<\/b><\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Splunk<\/b> for <b>log<\/b> analysis<\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><b>OSSEC<\/b> for intrusion detection<\/li>\n<\/ul>\n<img decoding=\"async\" width=\"800\" height=\"448\" src=\"https:\/\/liora.io\/app\/uploads\/sites\/9\/2025\/02\/dst_acquisition_Representation_of_data_vulnerability_with_a_cra_6c8d60f8-caa8-4096-b611-7f901fd16f89-1024x574.webp\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/liora.io\/app\/uploads\/sites\/9\/2025\/02\/dst_acquisition_Representation_of_data_vulnerability_with_a_cra_6c8d60f8-caa8-4096-b611-7f901fd16f89-1024x574.webp 1024w, https:\/\/liora.io\/app\/uploads\/sites\/9\/2025\/02\/dst_acquisition_Representation_of_data_vulnerability_with_a_cra_6c8d60f8-caa8-4096-b611-7f901fd16f89-300x168.webp 300w, https:\/\/liora.io\/app\/uploads\/sites\/9\/2025\/02\/dst_acquisition_Representation_of_data_vulnerability_with_a_cra_6c8d60f8-caa8-4096-b611-7f901fd16f89-768x430.webp 768w, https:\/\/liora.io\/app\/uploads\/sites\/9\/2025\/02\/dst_acquisition_Representation_of_data_vulnerability_with_a_cra_6c8d60f8-caa8-4096-b611-7f901fd16f89.webp 1456w\" sizes=\"(max-width: 800px) 100vw, 800px\">\n<h2 class=\"wp-block-heading\" id=\"h-best-practices\">Best practices<\/h2>\nTo ensure optimal security of your system, here are some essential recommendations:\n<ul>\n \t<li>Engage qualified professionals to conduct the audit<\/li>\n \t<li>Schedule <b>regular audits<\/b> to maintain a consistent level of security<\/li>\n \t<li>Involve internal teams in the process<\/li>\n \t<li>Document results and corrective actions precisely<\/li>\n \t<li>Implement follow-up on recommendations<\/li>\n \t<li>Regularly train teams<\/li>\n \t<li>Maintain a <a href=\"https:\/\/liora.io\/en\/what-is-technology-watch\">technology watch<\/a><\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\" id=\"h-mistakes-to-avoid\">Mistakes to avoid<\/h2>\nTo maximize the effectiveness of your audit, avoid these common mistakes:\n<ul>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Neglecting certain areas of the computer system<\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Underestimating the importance of user training<\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Ignoring auditors\u2019 recommendations<\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Waiting too long between audits<\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Not involving stakeholders sufficiently<\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Neglecting documentation<\/li>\n \t<li style=\"font-weight: 400;\" aria-level=\"1\">Underestimating minor risks<\/li>\n<\/ul>\n<h2 class=\"wp-block-heading\" id=\"h-conclusion\">Conclusion<\/h2>\nThe security audit is a key element in identifying vulnerabilities and ensuring the protection of your computer system. By following a rigorous methodology and applying expert recommendations, you significantly enhance your IT security. Remember that security is an ongoing process that requires constant attention and regular updates to your practices. Investing in security today can prevent much greater costs tomorrow.\n\n<a href=\"\/en\/courses\/data-ai\/\">\nBecome a cybersecurity expert\n<\/a>\n<script type=\"application\/ld+json\"><br \/>\n{<br \/>\n  \"@context\": \"https:\/\/schema.org\",<br \/>\n  \"@type\": \"FAQPage\",<br \/>\n  \"mainEntity\": [<br \/>\n    {<br \/>\n      \"@type\": \"Question\",<br \/>\n      \"name\": \"What is a security audit?\",<br \/>\n      \"acceptedAnswer\": {<br \/>\n        \"@type\": \"Answer\",<br \/>\n        \"text\": \"A security audit is a thorough and systematic assessment of an IT system aimed at identifying vulnerabilities and potential security risks. This analysis provides a complete overview of the infrastructure and proposes appropriate solutions to strengthen protection. The audit can be internal or external, with each approach offering its own advantages.\"<br \/>\n      }<br \/>\n    },<br \/>\n    {<br \/>\n      \"@type\": \"Question\",<br \/>\n      \"name\": \"Why conduct a security audit?\",<br \/>\n      \"acceptedAnswer\": {<br \/>\n        \"@type\": \"Answer\",<br \/>\n        \"text\": \"Cybersecurity has become a major concern for all organizations, regardless of their size. 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These steps ensure a complete and effective system review.\"<br \/>\n      }<br \/>\n    },<br \/>\n    {<br \/>\n      \"@type\": \"Question\",<br \/>\n      \"name\": \"What tools are used in a security audit?\",<br \/>\n      \"acceptedAnswer\": {<br \/>\n        \"@type\": \"Answer\",<br \/>\n        \"text\": \"Commonly used tools include Nmap for network analysis, Metasploit for penetration testing, Wireshark for traffic analysis, as well as SonarQube and OWASP ZAP for code analysis.\"<br \/>\n      }<br \/>\n    },<br \/>\n    {<br \/>\n      \"@type\": \"Question\",<br \/>\n      \"name\": \"W<\/p><\/script>","protected":false},"excerpt":{"rendered":"<p>Protecting data and computer systems has become a top priority for businesses. Conducting a security audit is a fundamental step in assessing and enhancing the security of an IT infrastructure. Discover why and how to implement this essential practice.<\/p>\n","protected":false},"author":85,"featured_media":194020,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_theme","format":"standard","meta":{"_acf_changed":false,"editor_notices":[],"footnotes":""},"categories":[2426],"class_list":["post-194018","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cybersecurity"],"acf":[],"_links":{"self":[{"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/posts\/194018","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/users\/85"}],"replies":[{"embeddable":true,"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/comments?post=194018"}],"version-history":[{"count":5,"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/posts\/194018\/revisions"}],"predecessor-version":[{"id":205292,"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/posts\/194018\/revisions\/205292"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/media\/194020"}],"wp:attachment":[{"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/media?parent=194018"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/categories?post=194018"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}