A security audit is a systematic evaluation of an organization's information systems and security measures. It aims to identify vulnerabilities, assess risks, and ensure compliance with relevant regulations. By examining policies, procedures, and technical controls, a security audit helps organizations protect their data and assets from potential threats. During a security audit, professionals may review various aspects, including network security, access controls, and incident response plans. The findings from the audit can guide organizations in improving their security posture and implementing necessary changes to safeguard sensitive information and maintain trust with clients and stakeholders.