Intune app protection policies (APP) are rules that ensure an organization's data remains safe or contained in a managed app. These policies allow you to control how data is accessed and shared by apps on mobile devices.^[https://learn.microsoft.com/en-us/intune/intune-service/apps/app-protection-policy]
The APP data protection framework is organized into three distinct configuration levels, with each level building off the previous level^[https://learn.microsoft.com/en-us/intune/intune-service/apps/app-protection-policies]:
- **Enterprise basic data protection** (Level 1) ensures that apps are protected with a PIN and encrypted and performs selective wipe operations. For Android devices, this level validates Android device attestation. This is an entry level configuration that provides similar data protection control in Exchange Online mailbox policies and introduces IT and the user population to APP.
- **Enterprise enhanced data protection** (Level 2) introduces APP data leakage prevention mechanisms and minimum OS requirements. This is the configuration that is applicable to most mobile users accessing work or school data.
- **Enterprise high data protection** (Level 3) introduces advanced data protection mechanisms, enhanced PIN configuration, and APP Mobile Threat Defense. This configuration is desirable for users that are accessing high risk data.
# Mobile Application Management (MAM) for unenrolled devices in Microsoft Intune
> MAM for unenrolled devices uses app configuration profiles to deploy or configure apps on devices without enrolling the device. When combined with app protection policies, you can protect data within an app.
>
> MAM for unenrolled devices is commonly used for personal or bring your own devices (BYOD). Or, used for enrolled devices that need extra security. MAM is an option for users who don't enroll their personal devices, but still need access to organization email, Teams meetings, and more.^[https://learn.microsoft.com/en-us/intune/intune-service/fundamentals/deployment-guide-enrollment-mamwe]
# Require Approved Client Apps or App Protection Policy
People regularly use their mobile devices for both personal and work tasks. While making sure staff can be productive, organizations also want to prevent data loss from applications on devices they may not manage fully.
With Conditional Access, organizations can restrict access to [approved (modern authentication capable) client apps with Intune app protection policies](https://learn.microsoft.com/en-us/entra/identity/conditional-access/concept-conditional-access-grant#require-app-protection-policy). For older client apps that may not support app protection policies, administrators can restrict access to [approved client apps](https://learn.microsoft.com/en-us/entra/identity/conditional-access/concept-conditional-access-grant#require-approved-client-app).^[https://learn.microsoft.com/en-us/entra/identity/conditional-access/policy-all-users-approved-app-or-app-protection]