Securing Azure Active Directory (Azure AD) involves implementing a combination of controls and best practices to protect your organization’s identity and access management. Here are some steps you can take to secure Azure AD:

1. Use Multi-Factor Authentication (MFA) to add an extra layer of security for users logging in to Azure AD:

• In the Entra admin center, navigate to the Azure AD and select “Azure AD” > “Users” > “All users”
• Select the users you want to enable MFA for, click Per-User MFA and then click “Enable”

2. Enable Azure AD Conditional Access to set policies that control access to Azure AD resources based on specific conditions such as device compliance, location, and user identity:

• In the Azure portal, navigate to the Azure AD and select “Azure AD” > “Security” > “Conditional access”
• Create a new policy by clicking on “New policy” and configure the conditions, such as location and device compliance, that must be met before access is granted:

3. Implement Azure AD Identity Protection to detect suspicious login activities and take action to prevent them:

• Navigate to the Azure portal and select “Azure AD” > “Security” > “Identity Protection”
• Configure Azure AD Identity Protection by setting up risk policies and creating sign-in and anomaly detection policies:

4. Use Azure AD Privileged Identity Management (PIM) to manage and monitor privileged access to Azure AD resources:

• Navigate to the Azure AD portal and search for “Privileged Identity Management”
• Configure Azure AD PIM by creating and managing roles for Azure AD resources and assigning them to users.

5. Utilize Azure AD’s built-in reporting and auditing capabilities to track user access and detect any suspicious activity:

• Navigate to the Azure AD portal and select “Azure AD” > “Audit logs”
• Use the built-in reports and filters to review user access and detect suspicious activity

6. Implement Azure AD security best practices, such as using strong passwords, limiting the number of global administrators, and regularly reviewing and revoking unnecessary permissions:

• Navigate to the Azure AD portal and select “Azure AD” > “Users” > “All users”
• Configure password policies for users and limit the number of global administrators
• Regularly review and revoke unnecessary permissions for users and groups

It’s important to note that security is a continuous process and you should revisit and review your Azure AD security regularly to ensure it remains effective.