Enforcing Real-Time Cloud App Protection with Conditional Access and Defender for Cloud Apps

Overview of Conditional Access App Control (CAAC)

Conditional Access App Control (CAAC) is a security feature in Microsoft Defender for Cloud Apps that provides granular control over user activity within cloud applications, ensuring compliance with organizational policies while maintaining operational efficiency. CAAC operates at two levels: Access Policies and Session Policies, each serving distinct purposes.

Key Features

1. Access Control:

   • Prevents users from accessing cloud apps based on predefined conditions.
   • Example: Blocking access to sensitive applications from unmanaged devices or non-secure networks.

2. Activity Monitoring & Enforcement:

   • Monitors user activities within the application and enforces policies in real-time.
   • Example: Blocking downloads of confidential files, preventing uploads without proper labeling, etc.

3. Sensitivity Labeling Integration:

   • Applies Microsoft Purview sensitivity labels to downloaded files automatically.
   • Ensures that sensitive data remains protected even after leaving the cloud environment.

Deployment Steps

1. Enable Report-Only Mode in Entra ID Conditional Access

• Analyze sign-in logs for two to four weeks to understand which sessions would be affected by CAAC policies.

2. Deploy Monitor-

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