implementing-passwordless-auth-with-microsoft-entra

# Implementing Passwordless Auth with Microsoft Entra ## When to Use - Organization wants to eliminate password-based attacks (phishing, credential stuffing, brute force) - Regulatory or internal mandate requires phishing-resistant MFA (Executive Order 14028, CISA guidance) - Deploying FIDO2 security keys or Windows Hello for Business across the enterprise - Migrating from legacy MFA (SMS, phone call) to phishing-resistant authentication methods - Implementing passkey support for hybrid or cloud-joined Windows devices - Reducing helpdesk costs from password reset requests **Do not use** for environments that cannot support modern authentication protocols; legacy applications using NTLM or basic authentication must be migrated first. ## Prerequisites - Microsoft Entra ID P1 or P2 license (Azure AD Premium) - Windows 10/11 22H2+ for Windows Hello for Business deployment - FIDO2-compliant security keys (YubiKey 5 Series, Feitian BioPass, Google Titan) - Microsoft Authenticator app 6.8+ for passkey support on iOS 16+/Android 14+ - Hybrid Azure AD join or Azure AD join configured for Windows devices - Conditional Access policies configured for authentication strength ## Workflow ### Step 1: Configure Authentication Methods Policy Enable passwordless authentication methods in Microsoft Entra: ```powershell # Connect to Microsoft Graph Connect-MgGraph -Scopes "Policy.ReadWrite.AuthenticationMethod", "User.ReadWrite.All" # Enable FIDO2 Security Key authentication method $fi...