Redundant SaaS apps expose the identity governance gap in 2026

At a glance

What this is: This guide explains how redundant SaaS apps create cost, workflow, and security problems, with the key finding that overlap quickly turns into shadow IT and weaker governance.

Why it matters: It matters because duplicated SaaS usage expands the identity surface across human, NHI, and lifecycle controls, making access reviews, renewals, and offboarding harder to govern consistently.

By the numbers:

• Only 5.7% of organisations have full visibility into their service accounts.
• 79% of organisations have experienced secrets leaks, with 77% of these incidents resulting in tangible damage.
• 70% of organisations grant AI systems more access than they would give a human employee performing the exact same job.
• 92% of organisations expose NHIs to third parties, raising concerns about supply chain security.

👉 Read Zluri's guide to reducing redundant SaaS apps in 2026

Context

Redundant SaaS apps are overlapping tools that solve the same business problem in different places, which creates waste, confusion, and weaker control over who can access what. In identity terms, the problem is not only software duplication but unmanaged entitlements spread across multiple tenants, teams, and approval paths.

For IAM and governance teams, SaaS sprawl is rarely just a procurement issue. It becomes a lifecycle problem when users, service accounts, API tokens, and integrations keep accumulating in apps that no one fully owns, reviews, or retires.

That is why application standardisation and app discovery have to be treated as identity controls, not just cost controls. Once redundant applications are allowed to persist, access reviews, renewals, and offboarding become fragmented across too many systems to govern cleanly.

Key questions

Q: How should security teams reduce risk from redundant SaaS applications?

A: Security teams should first inventory all overlapping apps, then map each one to its business owner, users, admin accounts, and integrations. From there, they should remove unused duplicates, centralise renewal decisions, and require offboarding before contracts auto-renew. The goal is to shrink the number of identity paths, not just lower licence spend.

Q: Why do redundant SaaS apps create governance risk?

A: Redundant SaaS apps create governance risk because every extra platform adds another user directory, admin console, and lifecycle process. That fragmentation makes it harder to know who owns access, which accounts are still active, and whether offboarding actually happened. The risk grows when teams rely on local procurement decisions instead of central control.

Q: What breaks when SaaS app rationalisation is not tied to identity reviews?

A: What breaks is the ability to remove access cleanly. Organisations may retire a subscription while leaving behind admin roles, API keys, synced identities, or shadow accounts in the duplicate system. Without identity review, the old app can remain a live access path even after the business stops using it.

Q: Who should own redundant app cleanup and offboarding?

A: The most effective model is shared ownership with a single accountable application owner. IT, security, procurement, and business teams all contribute, but one owner must be responsible for renewal decisions, entitlement cleanup, and final shutdown. Without that accountability, redundant apps tend to persist by default.

Technical breakdown

Why redundant SaaS apps become an identity problem

Redundant SaaS apps create parallel identity domains. Each application carries its own users, roles, SCIM or SSO configuration, API keys, and admin accounts, so the same employee can exist in several control planes at once. That duplication increases the chance that one system remains live after another becomes preferred, which leaves stale access behind. In practice, the more overlapping tools an organisation keeps, the more likely it is to lose sight of which identities are still active, which ones are privileged, and which ones have no clear owner.

Practical implication: map every redundant app to its identity objects, not just its license count.

How shadow IT and duplicate apps expand the attack surface

Shadow IT often appears when teams adopt a new app for convenience while the older one remains active. That creates hidden data flows, unmanaged integrations, and fragmented authentication paths across business units. Even when SSO exists, duplicate apps can still carry separate admin consoles, local accounts, and service integrations that bypass central review. The result is a wider attack surface with more places for credentials, tokens, and permissions to persist beyond policy intent.

Practical implication: treat app duplication as a visibility and access-risk signal, not only a spend issue.

Why renewals and offboarding fail in overlapping SaaS estates

Overlapping SaaS estates make lifecycle control harder because renewals often happen on separate calendars, by separate owners, with separate approval histories. If app ownership is unclear, offboarding becomes inconsistent and old subscriptions keep renewing automatically. The same applies to machine access, where integrations and API credentials can remain active long after the app is no longer strategic. This is a governance failure, not just a process gap, because lifecycle controls only work when the organisation knows exactly what it is retiring and who owns the decision.

Practical implication: tie renewal review and offboarding to a named application owner and a decommission checklist.

Threat narrative

Attacker objective: The practical objective is to exploit unmanaged software sprawl so access, data, and integrations persist outside central governance.

1. Entry occurs when employees or teams adopt overlapping SaaS tools outside the standard procurement and identity workflow, creating unsanctioned access paths.
2. Escalation follows when duplicate apps accumulate separate admin roles, service credentials, and renewals that central teams do not fully review or revoke.
3. Impact shows up as shadow IT, fragmented data, higher licence spend, and a larger identity surface that is harder to secure and govern.

Breaches seen in the wild

• Cisco DevHub NHI breach — IntelBroker exploited exposed Cisco credentials, API tokens and keys in DevHub.
• Salesloft OAuth token breach — hackers stole OAuth tokens to access Salesforce data via Salesloft.

Read our 52 NHI Breaches Analysis report for a comprehensive view of breaches impacting Non-Human Identities including AI Agents.

NHI Mgmt Group analysis

Redundant SaaS is really identity redundancy: The governance problem is not simply that organisations buy too many tools, but that each extra tool creates another place where identity lives, ages, and drifts. Duplicate apps multiply users, admins, tokens, and approvals faster than most governance teams can reconcile them. The practical conclusion is that SaaS rationalisation should be treated as identity surface reduction.

Shadow IT is a lifecycle failure, not a visibility footnote: Unapproved SaaS adoption becomes dangerous when ownership, renewal, and offboarding are split across teams that do not share a single control record. That is exactly the kind of fragmented lifecycle pattern that OWASP-NHI and NIST-CSF style governance are meant to constrain. The practical conclusion is that app discovery only matters if it feeds retirement and entitlement cleanup.

Redundant apps create identity blast radius: Once a business process is duplicated across multiple platforms, every access decision and every credential becomes harder to scope, review, and remove. This is the same structural problem that makes over-privileged NHIs dangerous: the environment becomes larger than the governance model assumed. The practical conclusion is to measure blast radius, not just app count.

Standardisation is a governance control, not just an efficiency tactic: Choosing one primary tool for a workflow shrinks the number of access paths, admin surfaces, and renewal events that must be governed. That does not eliminate risk, but it turns a diffuse control problem into a manageable one. The practical conclusion is to align standardisation with access governance and lifecycle ownership.

Duplicate SaaS exposes the same control weakness as unmanaged NHIs: When access is distributed across too many applications, no one can confidently answer who owns the account, when it was last reviewed, or whether it should still exist. That is the governance premise that fails here. The practical conclusion is to unify ownership before trying to optimise spend.

From our research:

• Only 5.7% of organisations have full visibility into their service accounts, according to Ultimate Guide to NHIs.
• 79% of organisations have experienced secrets leaks, with 77% of these incidents resulting in tangible damage.
• That visibility gap is why teams should also study NHI Lifecycle Management Guide for the offboarding and rotation controls that reduce persistence risk.

What this signals

Redundant SaaS app sprawl is a leading indicator of identity sprawl: When teams tolerate duplicate tools, they are usually also tolerating duplicate accounts, duplicate admin paths, and duplicate renewal logic. With 92% of organisations exposing NHIs to third parties, according to Ultimate Guide to NHIs, the control problem is no longer confined to SaaS spend.

Governance teams should expect rationalisation projects to move closer to identity operations. That means app discovery, entitlement cleanup, and renewal review will increasingly sit alongside access recertification and lifecycle governance rather than under procurement alone.

Identity blast radius: the useful metric for SaaS sprawl is not how many apps exist, but how much access and how many integrations remain active across overlapping platforms. If the same business process runs in three tools, the organisation is carrying three chances to miss an account, token, or admin role.

For practitioners

• Build an application-to-identity inventory List each SaaS app, its business owner, human users, admin accounts, API integrations, and renewal date in one system of record. Include duplicate tools used for the same workflow so governance teams can see where access and data are fragmented.
• Tie app rationalisation to access review Do not retire duplicate tools from a finance-only perspective. Require access review, role cleanup, and integration shutdown before decommissioning any overlapping application, especially where admin or API access exists.
• Unify renewal and offboarding workflows Route renewals through the same control path as offboarding so unused apps cannot auto-renew without ownership confirmation. This is especially important where local accounts, vendor-managed admin roles, or service tokens exist.
• Measure app overlap by control surface, not license count Track how many apps share the same function, the same data, and the same identity providers. That view shows where the organisation is carrying duplicate administrative and security burden even when spend looks stable.

Key takeaways

• Redundant SaaS apps create an identity governance problem because each duplicate platform adds more users, more admins, and more lifecycle drift.
• The biggest operational risk is not only cost waste but hidden access that persists after teams stop using the older app.
• App rationalisation works best when procurement, access review, and offboarding are treated as one control process.

Key terms

• Redundant SaaS App: A redundant SaaS app is a tool that duplicates the function of another application already in use by the organisation. The governance issue is not only cost duplication, but the extra identities, permissions, and integrations that have to be reviewed, retired, and secured across both systems.
• Shadow IT: Shadow IT is software or technology adopted outside approved governance channels. In SaaS environments, it often appears when teams bypass central procurement or security review, creating hidden accounts, local admins, and unsanctioned data flows that are difficult to monitor or remove.
• Identity Blast Radius: Identity blast radius is the amount of damage that can result from a single account, token, or admin path being mismanaged. In duplicate SaaS estates, blast radius grows because the same business process, data set, or permission model exists in multiple systems at once.
• Application Offboarding: Application offboarding is the controlled shutdown of a software service and the removal of the identities, integrations, and data access tied to it. For SaaS programmes, it must include account cleanup, token revocation, and confirmation that renewal paths are closed.

Deepen your knowledge

NHI governance, agentic AI identity, and machine identity lifecycle are core topics in our NHI Foundation Level course, the industry's only accredited NHI security programme. If you are responsible for identity security strategy or NHI governance in your organisation, it is worth exploring.

This post draws on content published by Zluri: SaaS Management Redundant SaaS Apps, a guide for 2026. Read the original.