Azure Active Directory (Azure AD) Conditional Access is a tool that helps ensure the security of your organization's data by implementing automated access control decisions for accessing your cloud apps. These decisions are enforced based on a combination of conditions and are designed to help protect your organization's data.
Here are some key concepts:
Policies: Conditional Access policies are if-then statements. For example, if a user wants to access a resource, then they must complete an action. These policies are evaluated in real time and enforced when a user attempts to access any Azure AD-secured resource.
Conditions: These include aspects like User or group membership, IP location information, device platform (like iOS, Android, Windows, macOS), device state (compliant or not), sign-in risk, client apps (browser or mobile), and Cloud apps or actions.
Access controls: There are two types of access controls: Grant and Session. Grant controls include aspects like require password change, require multi-factor authentication (MFA), require device to be marked as compliant, require Hybrid Azure AD joined device, or require approved client app. Session controls, on the other hand, include use app enforced restrictions, use Conditional Access App Control, sign-in frequency, and persistent browser session.
Report-only mode: This is a feature that allows you to evaluate the impact of Conditional Access policies before enabling them in your environment.
Monitoring and Reporting: Azure provides built-in sign-in logs and audit logs to monitor and report on Conditional Access.
Azure AD Conditional Access is used to protect data, manage devices, simplify IT processes, and enhance productivity. It's important to note that Conditional Access requires an Azure AD Premium P1 license for each unique user who is a member of one or more Conditional Access policies.
It's also worth mentioning that as of my knowledge cutoff in September 2021, Microsoft continues to add features and make changes to Azure AD and Conditional Access, so for the most recent updates, it would be best to check Microsoft's official documentation or other recent resources.