The primary and most valuable aspect of Azure AD identity is its ability to function seamlessly on both on-premise and cloud infrastructure, eliminating the need for extensive updates. However, this dual solution can pose vulnerabilities that require substantial support and security measures in the on-premise environment. Despite the challenges, it is currently not feasible to completely abandon AD, especially for companies in the sales and energy sectors. The integration with Microsoft Defender is crucial for enhancing security, making identity and security the primary focus and purpose of Azure AD.