Information security policies are the foundation of an organization's security program, as they define the objectives, roles, responsibilities, and standards for protecting the information assets and systems. However, information security policies are not static, and they need to be reviewed and updated regularly to reflect the changes in the organization's environment, risk profile, and compliance requirements. Therefore, the best course of action when conducting an organization-wide risk assessment is to review the policies against current needs to determine adequacy. This means comparing the policies with the current threats, vulnerabilities, controls, and best practices, and identifying any gaps or weaknesses that need to be addressed.
The other options are not the best course of action, as they do not consider the current needs of the organization. Reviewing and updating the policies to align with industry standards may not be sufficient, as the organization may have specific or unique needs that are not covered by the standards. Determining that the policies should be updated annually may not be realistic, as the frequency of updates may depend on the nature and complexity of the policies and the organization. Reporting that the policies are adequate and do not need to be updated frequently may not be accurate, as the policies may be outdated or ineffective, and may expose the organization to unnecessary risks. References = Risk Assessment and Analysis Methods:
Qualitative and Quantitative - ISACA, Does Your Organization Need a Security Risk Assessment? - ISACA, SP 800-39, Managing Information Security Risk: Organization, Mission ...