Active Directory (AD) is the backbone of many organizations’ IT infrastructure, serving as the central repository for user accounts, computers, and security policies. Ensuring its security is paramount in safeguarding sensitive information and preventing unauthorized access. An Active Directory Hardening Checklist is a crucial tool for IT administrators and security professionals. It provides a structured approach to enhancing the security of your AD environment, reducing vulnerabilities, and mitigating potential risks. Below are some essential items to consider when hardening your Active Directory: