Securing 50,000+ Identities with Microsoft Entra.

A rapidly expanding Melbourne-based consumer services firm with over 50,000 active users found themselves managing identities through a fractured, legacy SQL architecture. As traffic scaled, the gaps in their security perimeter became immediately apparent.

After a localized credential stuffing attack attempted to breach the portal, the engineering team realized that their custom-built authentication flows could no longer safeguard customer data against modern, automated cyber threats. Furthermore, impending Australian structural compliance audits required strict Zero-Trust paradigms that their in-house system simply could not provide.

AgenorIT was brought in to architect an entirely new perimeter. We recommended structurally depreciating the legacy authentication network and transitioning completely to Microsoft Entra (Azure AD B2C).

This approach allowed us to completely offload identity security to Microsoft's hyperscale infrastructure. We mapped out a frictionless migration pathway, ensuring that exactly zero accounts out of the 50,000+ database would require manual password resets or face downtime during the cutover.

Our engineers executed the native integration using custom identity experience frameworks. We deployed:

• Seamless Single Sign-On (SSO): Direct integration with Google and Apple authentication to instantly remove onboarding friction.
• Conditional Risk-Based Access: Algorithmic security layers that instantly demand Multi-Factor Authentication (MFA) if a login attempt originates from an anomalous geolocation or unknown device.
• API-Driven Migration: A stealthy synchronization process that transported legacy hashed passwords directly into Azure's secure vault without alerting the end users.