Multi-tenant identity management in fintech requires more than a simple users table. When serving enterprise banking clients, platforms must support isolated IdP configurations per tenant (SAML/OIDC), Home Realm Discovery for automatic domain-based SSO routing, Just-In-Time provisioning, and per-tenant audit logs for SOC2/ISO 27001 compliance. Real-time user deprovisioning and decoupled identity infrastructure are essential to prevent unauthorized access and avoid accumulating technical debt from hard-coded integrations.
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Architectural Requirements for a Digital Banking PlatformThe Complexity of Domain DiscoverySecurity Beyond the LoginEngineering for ScaleSort: