In the context of an incident response team, the role of an internal auditor like David includes identifying, evaluating, and reporting on information security risks and vulnerabilities within the organization. His responsibility is to ensure that the organization's security controls are effective and to identify any security loopholes that could be exploited by attackers. Once identified, he reports these vulnerabilities to management so that they can take the necessary actions to mitigate the risks. This role is critical in maintaining theorganization's overall security posture and ensuring compliance with relevant laws, regulations, and policies.