Kurt Shintaku's Blog

A few months back, we introduced Continuous Access Evaluation (CAE) for tenants who had not configured any Conditional Access policies. CAE provides the next level of identity security by terminating active user sessions to a subset of Microsoft services (Exchange and Teams) in real-time on changes such as account disable, password reset, and admin initiated user revocation.

Today marks an important milestone in bringing this capability to everyone – now CAE is available in public preview for Azure AD tenants who have configured Conditional Access policies. Microsoft services, like Exchange and SharePoint, can terminate active user sessions as soon as a Conditional Access policy violation is detected. More Microsoft services, such as Dynamics and Azure, will be enabled in the future. You can turn on CAE to improve the security posture in your tenant with just a few clicks!

Read more here:

• BETA: “Continuous Access Evaluation” for Azure Active Directory 
  https://techcommunity.microsoft.com/t5/azure-active-directory-identity/continuous-access-evaluation-in-azure-ad-is-now-in-public/ba-p/1751704