Unified IGA, IAM and PAM leave the NHI governance gap exposed

At a glance

What this is: SafePaaS argues that combining IGA, IAM and PAM improves governance and auditability, but still leaves a gap around non-human identities, third-party access and service accounts.

Why it matters: IAM and PAM teams need to treat NHI visibility, lifecycle control and third-party scope as first-class governance problems, not leftovers hidden inside human access processes.

By the numbers:

• 87% view IAM as very to extremely important to their risk management and security posture.
• 77% have at least a few users with more access privileges than required for their jobs.
• 76% of organizations saw a reduction in unauthorized access from using an IAM solution.

Context

Identity governance is supposed to answer who has access, why they have it, and when that access should end. In this article, SafePaaS argues that unified IGA, IAM and PAM can improve those controls, but the model becomes less complete once the identity subject is a service account, API, contractor, system account or third party rather than a human employee.

The core problem is not that identity programmes are absent. It is that visibility, lifecycle discipline and privileged-access oversight were built first for human access patterns, then stretched to cover application accounts, automated tasks and delegated access. That leaves governance teams with partial coverage across modern hybrid environments, even where policy centralization looks mature.

Key questions

Q: What breaks when IGA and PAM do not cover non-human identities?

A: Governance breaks at the point where human-centric lifecycle controls meet service accounts, APIs and system credentials. Those identities can keep working after the original business need changes, which means certification may confirm the wrong thing and PAM may only control elevation, not existence. The result is hidden access that remains technically valid but no longer business justified.

Q: Why do over-entitled accounts keep showing up in mature IAM programmes?

A: Because provisioning speed is usually higher than review and offboarding speed. Roles change, projects end and third parties rotate, but permissions often remain until a later certification cycle catches them. That creates privilege creep, where access is not newly granted each time, but quietly accumulates across multiple lifecycle events.

Q: How should security teams govern vendor access across the third-party lifecycle?

A: Security teams should govern vendor access as a lifecycle, not a one-time approval. That means inventorying each third party, recording what it can access, setting review cadence based on exposure, and revoking every credential or integration at offboarding. The goal is to keep business need, access scope, and accountability aligned throughout the relationship.

Q: Should organisations prioritise visibility or privileged session control first?

A: Visibility comes first when the identity estate is incomplete, because you cannot govern what you cannot inventory. Privileged session control matters immediately for high-risk access, but it only manages the accounts you already know about. Mature programmes need both, with visibility driving scope and PAM controlling exposure.

Technical breakdown

Why unified IGA, IAM and PAM still miss NHI scope

Unified identity stacks often centralize policy and enforcement, but centralization does not equal complete governance. IGA is strongest where accounts move through joiner, mover and leaver workflows, while PAM is strongest where elevated access is explicit and time bound. Non-human identities break that model because they can be embedded in applications, automation, APIs and third-party integrations that are not managed like people. When a service account, system account or API credential falls outside the review cadence, the governance layer can record policy but still miss real access exposure.

Practical implication: Practitioners should inventory where machine and delegated identities bypass the same lifecycle and certification controls used for human accounts.

Why third-party access is a governance problem, not only a trust problem

The article treats third-party security as part of identity governance because external users often retain privileged or semi-privileged access long after their original business need changes. That matters because governance failures usually happen at the boundary between ownership, approval and offboarding. If a partner account or supplier credential is granted through one process but revoked through another, accountability becomes fragmented. Unified policy helps only when the organisation can prove which third-party identities still exist, what they can reach and who owns their removal. Otherwise, access survives the relationship that justified it.

Practical implication: Security teams should make third-party identity ownership, review and offboarding explicit rather than assuming vendor management covers access cleanup.

How over-entitled access accumulates inside lifecycle processes

SafePaaS highlights that over-access and privilege creep are not edge cases but a routine output of complex lifecycle management. As roles change, accounts accumulate permissions that remain technically valid even after the job need has disappeared. This is especially dangerous where certification is periodic and provisioning is automated, because stale authority can survive long enough to become normalised. In governance terms, the control failure is not the absence of policy, but the mismatch between access change speed and review speed. That mismatch is where over-entitlement persists.

Practical implication: Use entitlement review to catch stale privileges before they become embedded in business-as-usual access patterns.

Threat narrative

Attacker objective: The objective is to exploit excess or retained access to reach sensitive systems and perform actions that should have been blocked by governance controls.

1. Entry occurs when privileged credentials, contractor accounts or service accounts are created with more access than the role actually needs.
2. Escalation follows when those accounts retain broad access across systems, applications or infrastructure after lifecycle changes or relationship changes.
3. Impact is the potential misuse of over-entitled access for data access, unauthorized actions or lateral movement across critical business systems.

Breaches seen in the wild

• Azure Key Vault Contributor escalation 2024: Datadog found Azure Key Vault Contributor could add itself to access policies and read every secret, key and certificate in a vault.
• BeyondTrust breach 2024: A stolen BeyondTrust Remote Support API key let a China state-sponsored actor reset accounts and reach US Treasury workstations in 2024.

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

NHI Mgmt Group analysis

Unified identity platforms centralize control, but centralization alone does not close the NHI governance gap. IGA, IAM and PAM were designed to coordinate policy, provisioning and elevated access for a broad estate, yet the article itself shows that service accounts, APIs and third parties still fall through operational cracks. The practical conclusion is that a single identity platform is not the same thing as complete identity coverage.

Over-entitlement is the visible symptom, not the root cause. The article’s own data point that 77% of organisations have at least a few users with more access than needed is a governance warning, but the deeper issue is lifecycle misalignment. When review cadence, provisioning speed and offboarding discipline do not line up, excess access becomes a structural outcome rather than a one-off mistake. Practitioners should read over-entitlement as evidence of process drift across the identity stack.

Third-party access without lifecycle offboarding is a distinct failure mode. External accounts are not merely a vendor-management concern; they are identity objects with their own creation, review and removal obligations. Once an external user or supplier retains privileged access after the business need changes, accountability detaches from access. The implication is that governance programmes must treat third-party identities as first-class citizens in lifecycle design, not as exceptions handled elsewhere.

Identity blast radius: the real governance unit is no longer the account, but the maximum business impact of each identity type. Human access, service accounts and privileged credentials can each create different blast radii depending on where they live and how they are reviewed. That means practitioners should measure governance by exposure scope and revocation precision, not only by the existence of a policy framework.

PAM reduces exposure windows, but it cannot compensate for missing identity inventory. Timed access and session controls matter, yet they only govern identities the organisation can actually see and classify. If the estate is incomplete, privileged-access controls become a partial shield around an incomplete map. The conclusion for practitioners is straightforward: visibility and lifecycle discipline have to precede, not follow, PAM enforcement.

From our research library:

• Only 36% of health IT leaders say their organisation applies a privileged access strategy consistently across the enterprise, according to Ponemon Institute research.
• Read next: Service Account Security Guide

What this signals

Identity blast radius: governance teams should measure not just who has access, but how far each identity can reach before revocation. In hybrid estates, the practical question is whether human, machine and third-party identities sit inside the same review and offboarding model, or whether each one has a different control cadence.

PAM should be treated as an exposure-shaping control, not a substitute for identity inventory. If service accounts, contractor access and delegated credentials are not owned and classified, time-bound elevation only trims the edge of a much larger governance problem.

For practitioners

• Inventory non-human identities alongside human accounts Map service accounts, system accounts, APIs, contractor credentials and third-party identities into the same governance model used for employees. Tag ownership, purpose, privilege level and renewal date so gaps are visible before review cycles start.
• Tie third-party access to lifecycle offboarding Require every external identity to have an owner, an expiry condition and a removal workflow that is tested during vendor exit and contract change. Do not rely on procurement or vendor management alone to close access.
• Reconcile certification to actual privilege scope Compare the privileges users and non-human accounts actually hold with the access their role, process or integration still requires. Escalate any account that retains access after role changes, project closure or system retirement.
• Use PAM for temporary elevation, not identity visibility Keep privileged sessions time bound and auditable, but treat that as one layer of control. Pair it with inventory, ownership and revocation controls so temporary elevation does not hide persistent account sprawl.
• Separate service-account governance from human access reviews Create a distinct review path for machine identities that cannot be judged by attendance, manager approval or employment status. Use dependency mapping and application ownership to decide whether the account is still needed.

Key takeaways

• Unified IAM does not automatically cover machine identities, so service accounts and APIs can remain outside the governance model even when human access looks mature.
• The article’s 77% over-access figure reinforces a familiar pattern: entitlement sprawl is often created by lifecycle mismatch rather than policy absence alone.
• The control that matters most is precise ownership and revocation across humans, third parties and non-human identities, because PAM cannot fix unseen accounts.

Key terms

• Identity Governance and Administration (IGA): A framework of policies, processes, and technology to manage and govern digital identities and their access rights. Increasingly extended to cover non-human identities alongside human users.
• Privilege Access Management: Privilege Access Management is the discipline of controlling and monitoring elevated access to critical systems and data. It governs how privileged accounts, credentials, sessions, and commands are issued, used, recorded, and revoked, so administrative power is limited, traceable, and aligned to policy, risk, and operational need.
• Non-Human Identity (NHI): A digital identity assigned to a non-human entity such as a software application, service account, API key, bot, machine, or AI agent that enables it to authenticate and interact with systems without direct human involvement. NHIs now outnumber human identities in most enterprises by 25 to 50 times.
• Privilege Creep: Privilege creep is the gradual accumulation of access rights beyond what an identity actually needs. It usually happens when permissions are added for convenience and never removed. For NHIs, privilege creep expands blast radius and makes old credentials far more dangerous than their original purpose suggests.

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 building or maturing an IAM programme, it is worth exploring.