No Code Changes
Secure any legacy or on-prem app without modifying source code.
MFA without code changes
Legacy App MFA Without Code Changes
Legacy and on-premises applications often lack modern authentication controls, but replacing or rewriting them is expensive and risky.
Datawiza helps you implement legacy app MFA quickly using a reverse proxy approach, so you can enforce strong authentication without changing application code.
Legacy app coverage
Typical Legacy Application Types
Datawiza helps organizations deploy MFA for customer portals, workforce tools, older line-of-business systems, and critical ERP or CRM apps.
Customer and partner portals
Internal employee tools and intranet apps
Third-party and line-of-business apps
Legacy ERP and CRM systems
With Datawiza, you can protect legacy web and on-prem apps without custom MFA coding. The platform sits in front of your app, enforces MFA or 2FA policies, and grants access only after successful verification.
Fast rollout
Add MFA to Legacy Applications in Hours
Rapid Deployment
Go live in hours, not months, accelerating your project timeline.
Save Costs
Eliminate custom development and reduce maintenance overhead.
Flexible Hosting
Deploy on-premises, in your private cloud, or use Datawiza SaaS.
Meet Compliance
Meet compliance, audit, and cyber insurance requirements like SOC 2, HIPAA, PCI DSS, NYDFS, NIS2, and NIST.
Enhance Security
Modernize authentication with strong MFA and granular access control.
MFA methods
Various MFA and 2FA Methods Supported
- SMS and email OTP
- Authenticator app one-time passcodes, including TOTP from common mobile authenticator apps
- FIDO2 authenticators that support WebAuthn, including security keys and biometrics
- Phishing-resistant PKI Certificate-Based Authentication, including PIV smart cards
Architecture
Reverse Proxy Architecture for Legacy App MFA
Datawiza sits in front of your legacy web app as a reverse proxy. When a user tries to sign in, the proxy triggers MFA and only allows access after authentication is completed.
1. User accesses the app
Users browse to the same app URL. Datawiza Access Proxy intercepts the request.
2. MFA is enforced
Use Datawiza built-in MFA or your existing IdP, including Entra ID, Okta, Google, Ping, Auth0, or Cognito.
3. Access is granted
After MFA succeeds, Datawiza grants access to the legacy web app with stronger security and auditing.
Result: MFA for legacy apps in hours, not months, with no app rewrite, no custom MFA coding, and consistent policy across apps.
Build or proxy
Legacy App MFA vs Custom Code Integration
If your priority is rapid risk reduction without rebuilding core systems, reverse proxy MFA is often the fastest path.
| Criteria | Reverse Proxy MFA | Custom Code MFA |
|---|---|---|
| Deployment speed | Hours to days | Weeks to months |
| Code changes required | No | Yes |
| Legacy compatibility | High | Variable |
| Maintenance overhead | Lower | Higher |
| Policy consistency | Centralized | Fragmented by app |
Common use cases
Why teams add MFA to legacy apps
Meet compliance and audit requirements
Satisfy cyber insurance controls
Reduce credential-based attack risk
Standardize login security across old and modern apps
FAQ
Frequently Asked Questions
Can I add MFA without source-code changes?
Yes. A reverse proxy can enforce MFA before users reach the app, so no rewrite is required.
Can I use built-in MFA or my own identity provider?
Both. You can use Datawiza built-in MFA or integrate with Entra ID, Okta, Ping, Auth0, Cognito, and other identity providers.
What is legacy app MFA?
Legacy app MFA is multi-factor authentication added to older applications that lack native support for modern authentication.
How quickly can we deploy?
Initial rollout is often completed in hours or days, depending on policy complexity and app inventory.
Related MFA pages
Explore the No-Code MFA Deployment Path
Use these pages to compare the gateway approach, reverse proxy architecture, legacy app rollout, and vendor-specific MFA alternatives for existing applications.
No-Code MFA
Start with the main overview for built-in MFA, proxy enforcement, app coverage, and rollout strategy.
MFA Gateway
See how Datawiza Access Proxy works as the MFA enforcement point before users reach protected apps.
MFA Reverse Proxy
Understand the reverse proxy pattern for adding MFA outside legacy, custom, and hard-to-change web apps.
Auth0 MFA Alternative
Compare Datawiza with Auth0 when you need MFA for existing apps without a full CIAM migration.
Cognito MFA Alternative
Compare Datawiza with Cognito when you need MFA before moving users into AWS user pools.
Entra External ID MFA Alternative
Compare Datawiza with Entra External ID for existing apps that are not ready for a customer identity rebuild.
PingOne MFA Alternative
Compare Datawiza with PingOne when not every app can join a Ping-centered MFA rollout immediately.
Customer testimony
Trusted by enterprise teams
Datawiza is the least friction option to move to a modern MFA. By going with Datawiza and getting this done in a very short time, we were the heroes.
Jeff Farinich
SVP of Technology Services and CISO, New American Funding
Datawiza is the ideal solution for adding MFA to on-prem applications without the need to overhaul existing code or infrastructure.
Ronan Hurley
IT Administrator, Central Applications Office
With Datawiza, we rapidly enhanced security and improved the user experience through MFA and SSO without coding our own connector.
Manoj Chitre
CIO, Claremont Graduate University
Working with Datawiza and their team was a great experience. They went out of their way to ensure an easy and successful implementation.
Kent West
Director of IT, Roy Jorgensen
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