Legacy Application Governance

Executive Summary

Organizations have modernized identity for many SaaS applications, but critical legacy on‑prem applications still operate outside governance controls. These systems frequently lack SAML/OIDC/SCIM, provide inconsistent logging, and rely on manual reviews and deprovisioning.

That gap creates compliance exposure and operational drag—especially for ERP, MES, EHR, case management, and financial systems such as Fiserv and Bloomberg, where access decisions must be provable.

Auditors expect evidence that access is reviewed, enforced, and revoked when it is no longer needed. Legacy apps often cannot generate that evidence without manual effort.

Credenti Unify adds an identity-layer governance capability—identity enforcement, session telemetry, manager attestations, and inactivity-based deprovisioning—without modifying the underlying application.

Key takeaways

• Govern what can’t federate: Apply modern governance to legacy on‑prem apps without app rewrites.
• Prove who did what: Capture identity-linked session telemetry for auditability.
• Automate the lifecycle: Inactivity detection → manager notification → access removal with logged evidence.
• Align with your IdP: Works with Okta, Microsoft Entra, CyberArk, and other OIDC-compatible identity providers.

The Problem

Legacy on‑prem applications are often business‑critical, but they weren’t designed for modern governance. Security teams are asked to certify access, remove dormant users, and produce audit evidence—yet the application cannot reliably provide identity attribution or policy enforcement.

• Access decisions are manual, slow, and inconsistent.
• Inactivity reviews require log scraping and spreadsheets.
• Shared or generic access patterns reduce accountability.

Operational Risks

Stale access persists

Dormant users retain access long after role changes, transfers, or offboarding—raising insider and compliance risk.

Audit gaps

Legacy systems may not provide defensible evidence of who accessed what, when, and under what authorization.

Manual review overhead

Access reviews become periodic “fire drills” driven by spreadsheets, emails, and inconsistent documentation.

Shared accountability

Shared workstations and operational terminals create ambiguity—especially in regulated environments requiring individual accountability.

Why Existing Methods Fail

• App-level limitations: no federation, weak logging, no lifecycle hooks (e.g., SCIM) for automation.
• Evidence fragmentation: approvals in email, enforcement in tickets, logs in multiple places.
• Human error: manual analysis and removal is slow and inconsistent.
• Operational constraints: shared and “always-on” environments can’t tolerate disruptive workflows.

The Ideal Model

• Identity enforcement before access—tied to a real user.
• Unified telemetry for sessions (who/when/how/device) across applications.
• Manager attestations and review campaigns with documented outcomes.
• Policy-based enforcement that removes access when it is no longer justified.

Credenti Solution

Credenti Unify introduces an identity-layer governance control plane for legacy on‑prem applications—without requiring application modification.

Centralized identity enforcement

Authenticate the user before application access and validate policy via Okta, Entra, CyberArk, or OIDC IdPs.

Session telemetry for auditability

Capture identity, timestamps, device context, and authentication method for each access event.

Lifecycle automation

Detect inactivity, trigger manager review, and remove access with enforcement evidence logged end-to-end.

Shared-environment accountability

Preserve operational speed while restoring per-user attribution on shared workstations and terminals.

Supported Authentication Methods

Credenti Unify supports multiple user-friendly authentication options to fit operational and compliance needs.

• Badge-based login: RFID, CAC, and PIV-I badge workflows for fast access and strong attribution.
• Mobile-based authentication: Proximity login and QR Login for environments where passwords and tokens create friction.
• ‍IdP-aligned policies: Enforce authentication policy via Okta, Entra, CyberArk, or OIDC providers.
• Offline-capable continuity: Support access continuity for on-prem and offline scenarios where governance still must be provable.

Note: Credenti does not provide hardware. Any required hardware must be purchased by customers from resellers; Credenti only makes recommendations.

Architecture Overview

Credenti Unify acts as an identity enforcement and telemetry layer between users and legacy on‑prem applications (ERP, MES, EHR, case management, and financial systems such as Fiserv and Bloomberg).

• User authenticates using an approved method (badge, mobile/QR, IdP-aligned policy).
• Policy validation occurs via Okta, Microsoft Entra, CyberArk, or an OIDC provider.
• Access is granted without modifying the application.
• Session telemetry is recorded and made exportable for audits and certifications.

Conceptual flow:

Workflow Example

Traditional (manual)

1. Pull logs (if available) and reconcile identities in spreadsheets.
2. Email managers for approvals; track decisions manually.
3. Open tickets to disable accounts and collect evidence after the fact.

Outcome: Slow, inconsistent, and difficult to prove to auditors.

With Credenti Unify (automated)

1. Detect users inactive for 30/60/90 days for a legacy on‑prem application.
2. Notify managers with attributed evidence and capture approval/denial.
3. Remove access automatically when not justified; log enforcement events for audit export.

Outcome: Repeatable governance with end‑to‑end evidence.

Deployment Scenarios

Credenti Unify is designed for environments where governance must continue even when infrastructure constraints exist.

• On‑prem and private cloud deployments to meet data sovereignty and compliance requirements.
• Offline or limited-connectivity environments where access continuity is required.
• Shared workstation environments where speed is critical but accountability is required.
• Legacy system portfolios spanning multiple verticals (manufacturing, healthcare, government, financial services).

Security & Compliance Alignment

Credenti Unify helps organizations demonstrate individual accountability, lifecycle enforcement, and evidence-based access reviews for systems that cannot natively support modern controls.

Relevant frameworks include NIST 800-53 (AC-2, AC-6, IA controls), ISO 27001 Annex A.9 (Access Control), SOX logical access expectations, CJIS individual accountability requirements, and HIPAA access and audit controls.

The outcome is continuous, exportable evidence that aligns security operations with audit expectations.

Operational Benefits

• Reduce risk from dormant access: Automatically detect and remove stale access.
• Lower audit preparation time: Export evidence instead of assembling spreadsheets.
• Improve accountability on shared systems: Tie sessions to individuals without breaking operational workflows.
• Standardize governance across the app estate: Apply the same governance pattern to legacy on‑prem apps and modern systems.

Conclusion

Legacy on‑prem applications should not be exempt from modern governance expectations. When access reviews, inactivity enforcement, and audit evidence are manual, organizations carry unnecessary risk and operational burden.

Credenti Unify restores governance coverage across legacy applications by enforcing identity, capturing telemetry, automating lifecycle actions, and producing exportable evidence—without modifying the underlying app.

Who this white paper is for

• IAM and security teams governing legacy on‑prem application portfolios
• Compliance teams preparing for SOX, ISO 27001, CJIS, or HIPAA audits
• Application owners responsible for ERP, MES, EHR, case management, and financial systems
• IT operations leaders managing shared workstation environments

See Legacy Application Governance in Action

We can map your legacy application landscape to a governance policy like “inactive for 30 days → manager email → remove access,” and show how to produce audit-ready evidence across ERP, MES, EHR, case management, and financial platforms.

• IdP-aligned policy enforcement (Okta, Entra, CyberArk, OIDC)
• Exportable session telemetry and enforcement evidence
• Operational workflows preserved in shared environments