A security audit is a thorough examination of an organization's information systems and practices to ensure they are secure from threats. This process involves reviewing policies, procedures, and technical controls to identify vulnerabilities that could be exploited by cybercriminals. By conducting regular audits, companies can protect sensitive data and maintain trust with their customers. During a security audit, professionals may use various tools and techniques to assess the effectiveness of security measures. They often check for compliance with industry standards and regulations, such as GDPR or HIPAA. The findings from the audit help organizations improve their security posture and reduce the risk of data breaches.