Entra Application Security Best Practices Guide

This guide outlines essential best practices for securing Entra applications within an organization. It begins with the importance of conducting an app inventory, which involves identifying all internal and third-party applications that request Entra privileges. The next step is to assess the permissions associated with these apps, categorizing them into risk levels. The guide further differentiates between delegated and application-level permissions, emphasizing the need to prioritize securing apps with powerful Read/Write.All permissions due to their high-risk nature. Additionally, it advises on de-provisioning unused apps to minimize the attack surface and monitoring for expiring secrets or certificates to prevent outages. Establishing clear ownership for each app is crucial for governance and accountability. The guide also recommends implementing reporting mechanisms for continuous visibility into app security and enabling continuous remediation for high-risk applications. Finally, it stresses the importance of regularly reviewing and updating security policies related to Entra apps to adapt to emerging threats and best practices.