This document is a checklist designed to assist organizations in reviewing and enhancing their intranet security. It outlines various actions to be taken at specified frequencies, such as annually, semi-annually, and quarterly. Key areas covered include user management, system and application reviews, role-based access control, user credential standards, and account deprovisioning. The checklist emphasizes the importance of data handling and storage, including data classification and compliance with regulations like GDPR. It also addresses coding practices, authentication and access controls, and data transmission security. The document highlights the need for continuous monitoring through anomaly detection and reporting, as well as policy reviews and user awareness assessments. Additionally, it encourages organizations to customize the checklist to meet their unique needs and to engage stakeholders for a comprehensive approach to security. This checklist serves as a companion to a step-by-step guide for evaluating and strengthening intranet security and compliance.