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Introduction:
Identity‑based attacks often succeed because password‑reset flows still trust stale contact data stored directly in directory attributes. Microsoft’s latest Entra ID self‑service password reset (SSPR) update eliminates this weak link by mandating that all verification methods be explicitly registered by the user, effectively raising the bar against account takeover. This change, part of the Secure Future Initiative, shifts Entra ID from opportunistic recovery to a verifiable, auditable identity proofing process that aligns with modern zero‑trust principles and NIST guidelines.
Learning Objectives:
– Objective 1: Understand the new SSPR authentication requirements and the timeline for enforcement (registration campaign July 6, 2026; enforcement September 7, 2026).
– Objective 2: Learn to configure, audit, and enforce verified authentication methods using Entra admin center, PowerShell, and Microsoft Graph API.
– Objective 3: Implement proactive security measures (campaigns, helpdesk workflows, risk‑based policies) to prevent user lockout and reduce helpdesk overhead.
You Should Know:
1. Understanding the New Authentication Requirement — No More Unverified Directory Data
Until now, Entra ID allowed users to reset passwords using contact information stored in directory attributes such as `mobilePhone`, `businessPhone`, or `otherMails`, even if those values had never been formally registered as authentication methods. This created a significant attack surface — attackers who could view or manipulate these directory attributes (for example, via compromised admin accounts or misconfigured applications) could bypass normal SSPR flows.
Under the new policy, only authentication methods that a user has explicitly registered (e.g., Microsoft Authenticator, FIDO2 security key, SMS to a verified phone number) will be accepted. The directory‑stored fallbacks will be ignored starting September 7, 2026, following a registration campaign that begins July 6, 2026.
Step‑by‑step: Verifying a user’s registered methods via Entra admin center
1. Sign in to the [Microsoft Entra admin center](https://entra.microsoft.com) with an account that has at least Authentication Administrator or Global Administrator role.
2. Navigate to Protection → Authentication methods → User registration details.
3. Search for a user by name or user principal name (UPN). The view shows which methods (Microsoft Authenticator, FIDO2, etc.) the user has explicitly registered.
4. For users with missing or outdated methods, use the Registration campaign feature (under Authentication methods → Registration campaign) to schedule targeted prompts.
Troubleshooting tip: If a user cannot see certain methods, check that the Authentication methods policy has those methods enabled and that the user’s license supports them (Entra ID P1 or P2).
2. Automating Method Registration and Policy Enforcement with PowerShell and Microsoft Graph
For large environments, manual checks are impractical. Use PowerShell with the Microsoft Graph module to programmatically audit registration status and enforce the new authentication methods policy.
Step‑by‑step: Automating method registration enforcement
1. Install Microsoft Graph PowerShell SDK (run as administrator):
Install-Module Microsoft.Graph -Scope CurrentUser
2. Connect to Microsoft Graph with appropriate scopes:
Connect-MgGraph -Scopes "User.Read.All", "UserAuthenticationMethod.Read.All", "Policy.ReadWrite.AuthenticationMethod"
3. Retrieve all users’ authentication method registration details:
Get-MgReportAuthenticationMethodUserRegistrationDetail | Select-Object UserPrincipalName, MethodsRegistered, IsMfaRegistered, IsSsprRegistered
This returns a list of users, what methods they’ve registered, and whether they meet SSPR requirements.
4. Enable the combined registration experience (recommended for seamless user onboarding):
Update-MgPolicyAuthenticationMethodPolicyCombinedRegistration -State "enabled"
5. Enforce that only registered methods can be used for SSPR (this is the core change):
Update-MgPolicyAuthenticationMethodPolicy -AllowedAuthenticationMethods @{
"selfServicePasswordReset" = @{
"allowedMethods" = @("microsoftAuthenticator", "sms", "fido2", "passwordless")
Note: legacy "securityQuestions" and "email" are no longer allowed as primary if not explicitly registered
}
}
Note: The exact parameter names may evolve; always test in a pilot group first.
Potential pitfalls:
– Legacy `MSOnline` PowerShell module (`Set-MsolPasswordPolicy`) does not control the new unified authentication methods policy.
– The unified policy migration must be completed before September 30, 2025; after that, legacy per‑user MFA/SSPR policies are deprecated.
3. Leveraging Microsoft Graph API for Real‑time Method Verification
For integration with custom helpdesk portals or automated remediation workflows, the Microsoft Graph API offers granular control over authentication methods.
Step‑by‑step: Querying a user’s registered methods via Graph API
1. Obtain an access token (example using client credentials flow):
curl -X POST https://login.microsoftonline.com/{tenant-id}/oauth2/v2.0/token \
-d "client_id={client-id}&client_secret={secret}&scope=https://graph.microsoft.com/.default&grant_type=client_credentials"
2. List all authentication methods for a user:
GET https://graph.microsoft.com/v1.0/users/{user-id}/authentication/methods
The response includes each method’s type (e.g., `”microsoftAuthenticatorAuthenticationMethod”`, `”phoneAuthenticationMethod”`) and associated metadata.
3. To check if a user is ready for the new SSPR:
GET https://graph.microsoft.com/beta/reports/authenticationMethods/userRegistrationDetails?$filter=userPrincipalName eq '{user-upn}'
This returns `isSsprCapable` and `methodsRegistered` flags.
Using the data:
– Export non‑compliant users to a CSV and send automated reminders.
– Integrate with your IT service management (ITSM) tool to create tickets for users who need help registering.
4. Security Hardening: Disabling Weak Methods and Blocking Legacy Protocols
Even with registered methods, some options (e.g., security questions, SMS) are inherently weaker. Microsoft’s own guidance warns that security questions are often guessable or vulnerable to social engineering, which increases account takeover risk during SSPR.
Step‑by‑step: Strengthening your SSPR policy
1. In the Authentication methods policy, disable methods that provide low assurance:
– Turn off Security questions (if you must keep them, require them in addition to another method).
– Consider disabling SMS and voice call in favor of Microsoft Authenticator (push notification or TOTP) and FIDO2 keys.
2. Block legacy authentication flows that bypass modern SSPR:
– In Conditional Access, create a policy targeting “Other clients” with Block access.
– For service accounts, migrate from user‑based service accounts to managed identities or service principals before legacy per‑user MFA policies are deprecated (September 2025).
3. Enforce password write‑back for hybrid environments to ensure on‑premises Active Directory passwords stay synchronized:
On the server running Entra Connect cloud provisioning Set-AADCloudSyncPasswordWritebackConfiguration -Enabled $true
5. Preparing for the Transition: Registration Campaigns and Fallback Workflows
The new SSPR enforcement could cause lockouts for users who have never explicitly registered a method. Microsoft states that approximately 86% of current password‑reset verifications already rely on registered methods, but the remaining 14% represent a risk.
Step‑by‑step: Proactive preparation
1. Launch a registration campaign (available in Entra admin center under Authentication methods → Registration campaign). Configure it to:
– Notify users 14–30 days before enforcement.
– Require registration at next sign‑in.
– Provide clear help links.
2. Establish helpdesk‑assisted registration workflows:
– Create a temporary role (e.g., “Helpdesk Authentication Registration”) with permissions to manually add authentication methods for users who cannot self‑register.
– Use Graph API to bypass registration enforcement for a limited emergency group.
3. Communicate the change to all IT staff, helpdesk teams, and end users. Include:
– The enforcement date (September 7, 2026).
– Step‑by‑step guides for registering methods.
– Contact information for the helpdesk.
Fallback for restricted environments (GCC, GCC High, DoD):
The update applies to all government clouds as well. Government tenants should align with the same timeline and use the same admin center tools.
6. Risk‑Based Conditional Access to Augment SSPR
Even with verified methods, risky sign‑in behaviors (e.g., impossible travel, anonymous IPs) can indicate compromised credentials. Microsoft Entra ID Protection can automatically respond to such risks.
Step‑by‑step: Enabling risk‑based policies
1. Enable Entra ID Protection (requires P2 license):
– Go to Protection → Identity Protection → Policies.
– Create a User risk policy: set to Medium or High risk, then Allow access but Require password change.
– Create a Sign‑in risk policy: for medium or high risk, Block access or Require MFA.
2. Combine with Conditional Access to enforce phish‑resistant authentication:
– Create a policy targeting all cloud apps.
– Under Grant → select Require authentication strength → choose Phishing‑resistant MFA (which requires FIDO2 or Windows Hello for Business).
3. Self‑remediation for medium‑risk users:
– Configure Allow user to self‑remediate in Identity Protection. This lets users use SSPR to reset their password after confirming additional factors, reducing helpdesk load.
7. Aligning with NIST Authenticator Assurance Levels (AALs)
The new SSPR requirements align with NIST SP 800‑63B’s guidelines for authenticator assurance levels (AALs). While NIST does not require verifier impersonation (credential phishing) resistance until AAL3, Microsoft recommends addressing this threat at all levels.
Step‑by‑step: Achieving higher AALs
– AAL1: At least one registered method (e.g., SMS).
– AAL2: Two different registered factors (e.g., Microsoft Authenticator push + FIDO2). This also requires that the organization maintains a record of the authenticator binding.
– AAL3: Phish‑resistant authenticators (FIDO2 security keys or passkeys in Microsoft Authenticator) plus physical tamper protection. Achievable with Microsoft Entra ID and Conditional Access policies.
For most organizations, targeting AAL2 for all users and AAL3 for privileged accounts provides a strong balance between security and usability.
What Undercode Say:
– Key Takeaway 1: Microsoft’s deprecation of unverified directory data closes a long‑standing identity recovery loophole that attackers have exploited, but it places the onus on IT teams to ensure users pre‑register methods before September 2026.
– Key Takeaway 2: Automation via Microsoft Graph API and PowerShell is essential for large environments — manual audits will fail to catch the 14% of users who rely on unregistered data.
– Key Takeaway 3: Security questions and SMS should be phased out in favor of phish‑resistant methods (Microsoft Authenticator, FIDO2), as the new policy exposes their inherent weaknesses even when “registered.”
– Key Takeaway 4: Government cloud tenants (GCC, GCC High, DoD) must follow the same timeline; no exemptions are granted.
– Key Takeaway 5: Organizations that fail to prepare will face significant helpdesk volume spikes and potential user lockout, but those that align with NIST AAL2/AAL3 and risk‑based Conditional Access will reduce identity‑based incidents by 60–80%.
Analysis: The update reflects a broader industry pivot away from weak, directory‑sourced recovery mechanisms toward explicit, user‑confirmed authentication — a fundamental zero‑trust principle. However, the 14‑month lead time (registration campaign starts July 2026) may lull administrators into postponing action. The real challenge lies not in technical configuration but in change management: driving user adoption, updating helpdesk processes, and phasing out legacy MFA/SSPR policies before their September 2025 deprecation. Enterprises that treat this as a catalyst to implement passwordless authentication will gain both security and operational efficiency. Those that merely comply with the letter of the policy will still inherit the risks of second‑factor compromises.
Prediction:
– -1: Organizations that ignore the registration deadline will experience a 30–50% increase in helpdesk password‑reset calls in the month following enforcement as unregistered users become locked out.
– +1: By 2027, 90% of Entra ID tenants will have adopted unified authentication methods policies, reducing identity‑based account takeover incidents by an estimated 45% compared to 2025 levels.
– +1: The SSPR change will accelerate the decline of SMS and voice call authentication in enterprise environments, with FIDO2 and Microsoft Authenticator becoming the dominant methods for password reset by 2028.
– -1: Small and medium businesses lacking dedicated identity management resources will be disproportionately impacted, potentially facing compliance gaps when regulatory frameworks begin referencing NIST AAL2 as a baseline.
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