Multi-cloud identity fragmentation is exposing access governance gaps

At a glance

What this is: This is a multi-cloud identity governance analysis showing that fragmented access control creates visibility gaps, toxic combinations and de-provisioning risk.

Why it matters: It matters because IAM, NHI and PAM teams need one governance model for users, privileged accounts and service identities when access spans multiple platforms.

By the numbers:

• Only 5.7% of organisations have full visibility into their service accounts.
• 97% of NHIs carry excessive privileges, increasing unauthorised access and broadening the attack surface.

👉 Read SafePaaS's analysis of multi-cloud identity fragmentation and access governance

Context

Identity fragmentation happens when access is governed in separate clouds, identity providers and SaaS tools without a single control plane. In practice, that means no one has a complete answer to the simplest governance question: who has access to what across the environment. For IAM programmes, the problem is not just administration overhead. It is the loss of authoritative visibility across human users, privileged accounts and non-human identities.

The article argues that multi-cloud operating models turn ordinary lifecycle mistakes into security gaps, especially when de-provisioning, privilege review and segregation of duties checks are inconsistent across systems. That framing is right, but the deeper issue is governance fragmentation. Teams need a shared view of identity state across platforms before least privilege, PAM and compliance controls can be enforced consistently.

This is the same structural challenge that shows up in NHI programmes when service accounts, API keys and privileged tokens are managed separately from human identity. The control failure is rarely a single missing policy. It is usually the absence of a unified lifecycle and access model that can reconcile entitlements across environments.

Key questions

Q: How should security teams govern access across multi-cloud environments?

A: Security teams should govern multi-cloud access through a single entitlement model that spans cloud platforms, SaaS applications and identity providers. The priority is to centralise lifecycle events, separation of duties checks and privileged access review so local platform controls do not create blind spots elsewhere. Without that, access drift becomes unavoidable and de-provisioning remains incomplete.

Q: Why does identity fragmentation increase breach risk in cloud and SaaS estates?

A: Identity fragmentation increases breach risk because it hides where access actually accumulates. A user or service can appear low risk inside one system while holding dangerous combinations across several others. That makes toxic access harder to detect, revocation harder to verify and privilege creep easier to miss during normal operations.

Q: What breaks when de-provisioning is handled separately in each cloud?

A: When de-provisioning is handled separately in each cloud, organisations lose assurance that access is truly removed everywhere. One platform may close the account while another retains a live entitlement, leaving a residual path for misuse. That failure is especially dangerous for privileged users, third parties and shared operational identities.

Q: Which frameworks apply to multi-cloud identity governance and privileged access?

A: NIST Cybersecurity Framework 2.0, Zero Trust Architecture and NHI governance guidance all apply when access spans multiple platforms. They help teams structure visibility, least privilege and continuous verification across users, privileged roles and non-human identities. The practical test is whether governance still works when identities move outside a single cloud boundary.

Technical breakdown

Why identity fragmentation creates toxic access combinations

Toxic combinations emerge when a single identity accumulates permissions across systems that are safe in isolation but unsafe together. In multi-cloud environments, that can mean a user can create records in one platform and approve or execute payments in another, or a privileged account can be reused across cloud and SaaS boundaries. The technical problem is not just role design. It is the lack of a consolidated entitlement graph that can evaluate cross-platform separation of duties before access is granted or changed.

Practical implication: map cross-platform entitlements into one SoD model before relying on local cloud policies.

How centralized identity governance changes lifecycle control

A centralized identity management layer gives security teams one place to enforce joiner, mover and leaver actions, privilege review and policy exceptions across connected systems. Without that layer, de-provisioning becomes a best-effort process, not a verified control. The article’s emphasis on a single source of truth is important because lifecycle failures in one platform can leave active access behind even when HR or IT considers the identity closed. That is especially dangerous for privileged and third-party access.

Practical implication: require lifecycle events to close access in every connected platform, not just the primary identity provider.

Why policy-based access control is stronger than static roles in multi-cloud

Policy-based access control, or PBAC, evaluates business rules and context rather than relying only on broad static roles. In multi-cloud identity governance, that matters because the same person or service may need different access depending on business unit, environment, data sensitivity or task. Static roles tend to drift wider over time, while policy-based decisions can express narrower, auditable conditions. The key is that policy must be enforced consistently across ERP, cloud and identity systems, not only within one platform.

Practical implication: move high-risk access decisions to policy logic that can be enforced across clouds and business applications.

NHI Mgmt Group analysis

Identity fragmentation is a governance failure before it is a tooling problem. When access is split across cloud providers, identity providers and SaaS tools, no single team can reliably answer who has standing access, who can approve exceptions, or where toxic combinations exist. That creates blind spots in both human IAM and NHI governance. Practitioners should treat fragmented visibility as an architectural defect, not an operations issue.

Least privilege cannot be enforced consistently when entitlement state is duplicated across platforms. A role that looks narrow in one system may become high risk once combined with permissions in another, especially for privileged users and shared operational accounts. This is where cross-platform governance matters more than point controls. The implication is that access decisions need to be evaluated across the full entitlement chain, not inside one cloud at a time.

Policy-based access control is the right direction because static role models do not scale across hybrid estates. PBAC gives organisations a way to express business context, device state and risk conditions without multiplying roles every time a new SaaS or cloud platform is added. That does not remove the need for review, but it reduces role sprawl and makes governance more auditable. Practitioners should use policy as the governing layer and roles as the exception, not the default.

Privileged identity management must be federated across cloud boundaries or it will miss real exposure. Admin and architect accounts often carry the highest blast radius, yet they are also the identities most likely to be distributed across platforms and teams. If privileged access is only governed locally, organisations lose the ability to see standing privilege, task-specific elevation and dormant admin paths in one place. The implication is that PAM and identity governance must operate as a single control plane, not separate disciplines.

Multi-cloud access drift is the named failure mode this article exposes. The article shows how entitlements expand and diverge as identities move across AWS, Oracle Cloud, Entra ID and SaaS. That drift is what makes de-provisioning incomplete, SoD checks unreliable and privilege review partial. The practitioner conclusion is that governance has to be lifecycle-driven across all connected platforms, or identity fragmentation will keep recreating risk.

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, according to Ultimate Guide to NHIs.
• For a broader view of lifecycle risk, see NHI Lifecycle Management Guide for provisioning, rotation and offboarding controls.

What this signals

Identity fragmentation will keep widening the gap between policy intent and access reality. As cloud, SaaS and ERP estates grow, teams need one governance layer that can explain who can do what across every platform. Without that, review cycles become administrative theatre because the underlying entitlement picture is already stale.

Multi-cloud programmes should expect privileged access to become the hardest part of governance. Admin rights, emergency elevation and service credentials are the identities most likely to drift out of sync across tools. The practical signal is simple: if PAM, IGA and cloud access reviews cannot produce the same answer, the programme is not yet operating as one control system.

NHI governance should be part of the same discussion, not a separate project. When service accounts and tokens are managed differently from human identities, the same fragmentation problem reappears in machine form. That is why the gap between user governance and machine governance needs to shrink, especially in hybrid estates where OWASP Non-Human Identity Top 10 issues often show up first in operational sprawl.

For practitioners

• Build a unified entitlement inventory Create one authoritative view of user, privileged and service access across cloud, SaaS and ERP systems so cross-platform SoD checks can run against the full picture.
• Tie de-provisioning to every connected platform Require leaver and mover events to revoke access in all linked systems, not just the primary identity provider, and verify completion with audit evidence.
• Review toxic combinations across systems Run periodic analysis for combinations such as create-and-approve, provision-and-pay, or administer-and-consume access across separate platforms.
• Use policy-based controls for high-risk access Express contextual access rules for privileged users and sensitive workflows so decisions are enforced consistently across cloud and business applications.
• Federate privileged access governance Connect PAM oversight to cloud, ERP and identity data so standing privilege, temporary elevation and orphaned admin paths are reviewed together.

Key takeaways

• Multi-cloud identity fragmentation turns ordinary access administration into a governance risk because no single team can see the full entitlement picture.
• Toxic combinations, incomplete de-provisioning and privilege drift are the practical failure modes that emerge when access is split across platforms.
• Centralised policy control, federated PAM and lifecycle enforcement across every connected system are the controls that change the risk profile.

Key terms

• Identity Fragmentation: Identity fragmentation is the condition where access is governed in separate systems without one authoritative view of who can do what. It creates inconsistent lifecycle handling, weak visibility and higher risk because policy, review and revocation are no longer evaluated as a single control problem.
• Toxic Combination: A toxic combination is a set of permissions that appears acceptable in isolation but becomes dangerous when combined across systems. In practice, it often breaks segregation of duties, allowing one identity to create, approve, provision or consume access in ways the governance model was meant to prevent.
• Policy-Based Access Control: Policy-Based Access Control is an access model that grants or denies access using business rules, context and conditions instead of relying only on static roles. It is useful in multi-cloud environments because it can express finer-grained decisions across different systems without multiplying role definitions.
• Privileged Identity Management: Privileged Identity Management is the governance and control of elevated accounts that can change systems, data or security settings. It focuses on who can elevate, when elevation is allowed and how privileged access is reviewed, which is critical when admin rights span multiple clouds and applications.

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 SafePaaS: multi-cloud identity management and privileged access governance. Read the original.