Conditional Access: Sign-in risk-based Conditional Access

Most users have a normal behavior that can be tracked, when they fall outside of this norm it could be risky to allow them to just sign in. You may want to block that user or maybe just ask them to perform multi-factor authentication to prove that they are really who they say they are.

A sign-in risk represents the probability that a given authentication request isn't authorized by the identity owner. Organizations with Azure AD Premium P2 licenses can create Conditional Access policies incorporating Azure AD Identity Protection sign-in risk detections.

There are two locations where this policy may be assigned. Organizations should choose one of the following options to enable a sign-in risk-based Conditional Access policy requiring a secure password change.

Enable with Conditional Access policy

  1. Sign in to the Azure portal as a global administrator, security administrator, or Conditional Access administrator.
  2. Browse to Azure Active Directory > Security > Conditional Access.
  3. Select New policy.
  4. Give your policy a name. We recommend that organizations create a meaningful standard for the names of their policies.
  5. Under Assignments, select Users and groups.
    1. Under Include, select All users.
    2. Under Exclude, select Users and groups and choose your organization's emergency access or break-glass accounts.
    3. Select Done.
  6. Under Cloud apps or actions > Include, select All cloud apps.
  7. Under Conditions > Sign-in risk, set Configure to Yes. Under Select the sign-in risk level this policy will apply to
    1. Select High and Medium.
    2. Select Done.
  8. Under Access controls > Grant, select Grant access, Require multi-factor authentication, and select Select.
  9. Confirm your settings and set Enable policy to On.
  10. Select Create to create to enable your policy.

Enable through Identity Protection

  1. Sign in to the Azure portal.
  2. Select All services, then browse to Azure AD Identity Protection.
  3. Select Sign-in risk policy.
  4. Under Assignments, select Users.
    1. Under Include, select All users.
    2. Under Exclude, select Select excluded users, choose your organization's emergency access or break-glass accounts, and select Select.
    3. Select Done.
  5. Under Conditions, select Sign-in risk, then choose Medium and above.
    1. Select Select, then Done.
  6. Under Controls > Access, choose Allow access, and then select Require multi-factor authentication.
    1. Select Select.
  7. Set Enforce Policy to On.
  8. Select Save.

Next steps

Conditional Access common policies

User risk-based Conditional Access

Determine impact using Conditional Access report-only mode

Simulate sign in behavior using the Conditional Access What If tool

What is Azure Active Directory Identity Protection?