Authentication code is fragile
Older custom apps may depend on session logic, cookies, headers, or frameworks that are risky to change quickly.
Homegrown app security
Secure Homegrown Applications Without Rewriting Authentication
Datawiza Access Proxy lets teams add SSO, MFA, granular access policy, and audit in front of custom web applications while keeping the underlying app code and user experience stable.
Why projects stall
Homegrown app security can consume scarce engineering time
Security expertise is uneven
Teams may not want every app team implementing SAML, OIDC, MFA, and policy behavior independently.
Users wait for better login
While the rewrite waits in a backlog, users keep seeing old login flows and inconsistent MFA coverage.
Custom auth creates technical debt
Every app-specific integration becomes something the team must maintain during future IdP and policy changes.
How it works
Move access control to the proxy layer
Put Datawiza in front
Route users through Datawiza Access Proxy before requests reach the homegrown application.
Use your identity provider
Connect to Entra ID, Okta, Auth0, Ping, Google Workspace, Duo, Cognito, or another SAML/OIDC provider.
Bridge identity to the app
Forward trusted identity through headers, cookies, or app-compatible patterns so the application can keep working.
Centralize policy
Apply group, role, path, and context-aware rules outside the application and keep audit logs in one place.
Best fit
Where proxy-based security works best
This approach is strongest when the application matters, the login flow is hard to modify, and the business needs modern access control sooner than a rewrite can deliver.
For related patterns, see legacy app SSO without code changes and migrate legacy applications.
Good candidates include
Custom Java, .NET, PHP, Python, Node.js, Oracle, ERP, or internal web applications
Employee, customer, partner, supplier, or vendor portals with old authentication patterns
Apps that need SSO, MFA, authorization policy, and audit without source-code changes
Apps moving from local login, LDAP, SiteMinder, basic auth, or custom auth to a modern IdP
Teams that want a repeatable modernization pattern across many applications
Controls
What Datawiza adds around the app
SSO and MFA
Authenticate users with the identity platform your organization already trusts.
Granular authorization
Control access by user group, role, path, application area, or deployment context.
Header-based integration
Use trusted identity headers when the application can consume them, avoiding deep changes to login code.
Audit and visibility
Capture access events and policy decisions for operations, investigations, and audit support.
FAQ
Homegrown application security FAQ
Can we secure a custom app without rewriting login code?
Often, yes. Datawiza can enforce authentication at the access layer and pass trusted identity to the app using a compatible pattern.
Can this work with old frameworks?
Yes. The proxy-layer pattern is designed for applications that cannot easily adopt modern SAML, OIDC, or MFA libraries.
Do we still need application authorization?
Application authorization may still matter for business logic. Datawiza adds centralized access-layer controls such as who can reach the app or specific paths.
Can we use this for customer or partner portals?
Yes. Homegrown portals for customers, partners, suppliers, vendors, and employees are common candidates when they need stronger access controls quickly.
Secure one homegrown app first
Datawiza can review the app entry points, current login pattern, and identity provider setup and map a proxy-based SSO and MFA path.