Control: 2.2.5 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. Select Policies.
5. Click + New policy.
6. Enter a name for the policy.
7. Click the blue text under Users.
8. Under Include, select All users.
9. Under Exclude, check Users and groups.
10. Select users this policy should not apply to and click Select.
11. Click the blue text under Target resources.
12. Select All cloud apps.
13. Click the blue text under Grant.
14. Under Grant access, check Require multifactor authentication and click Select.
15. Set Enable policy to Report-only.
16. Click Create.

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

Default Value

Starting October 2024, MFA will be required for all accounts by default.