How to Fix: Require Phishing-Resistant MFA for Admins
Step-by-step guide to implement require phishing-resistant mfa for admins in your Microsoft 365 environment.
5-10 minutes
Estimated Time
4
Steps
critical
Severity
Enhanced Security
Baseline Level
Why This Matters
Traditional MFA (push notifications, SMS) can be bypassed through social engineering and MFA fatigue attacks. Phishing-resistant methods like FIDO2 keys cannot be phished because they require physical presence and cryptographic proof.
Prerequisites
- 1Global Administrator or appropriate admin role in Microsoft Entra ID
- 2Access to Microsoft Entra admin center (entra.microsoft.com)
- 3Microsoft Entra ID P1 or higher license
- 4Privileged Role Administrator role
Expected Configuration
- All users with privileged roles have registered phishing-resistant MFA
- FIDO2 security keys, Windows Hello for Business, or device-bound passkeys required
- SMS and voice call MFA methods are blocked for admin accounts
Remediation Steps
Review Current State
Assess your current privileged access configuration in Entra ID.
- •Navigate to Microsoft Entra admin center
- •Go to Identity > Roles and administrators
- •Review current role assignments
Plan Changes
Determine what changes need to be made to meet the expected configuration.
- •Identify users with excessive privileges
- •Document required role assignments
- •Plan implementation timeline
Implement Configuration
Apply the necessary changes to your Entra ID environment.
- •Configure PIM if applicable
- •Update role assignments
- •Set appropriate access reviews
Verify and Test
Confirm the changes are working as expected.
- •Run a TrueConfig scan to verify compliance
- •Test user access with affected accounts
- •Document the changes made
Auto-Remediation Available
TrueConfig can automatically fix this control for you. Enable auto-remediation to have this configuration applied and maintained automatically.
Learn about auto-remediationRelated Resources
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