Control: 1.2.4 Ensure that A Multi-factor Authentication Policy Exists for All Users

Description

For designated users, they will be prompted to use their multi-factor authentication (MFA) process on logins.

Enabling multi-factor authentication is a recommended setting to limit the potential of accounts being compromised and limiting access to authenticated personnel.

Remediation

From Azure Portal

1. From Azure Home open Portal menu in the top left, and select Microsoft Entra ID.
2. Select Security.
3. Select Conditional Access.
4. Click + New policy.
5. Enter a name for the policy.
6. Select Users or work load identities.
7. Under Include, select All users.
8. Under Exclude, check Users and groups.
9. Select users this policy should not apply to and click Select.
10. Select Cloud apps or actions.
11. Select All cloud apps.
12. Select Grant.
13. Under Grant access, check Require multifactor authentication and click Select.
14. Set Enable policy to Report-only.
15. Click Create.

After testing the policy in report-only mode, update the Enable policy setting from Report-only to On.

Default Value

MFA is not enabled by default.