IGA is central to user access management in 2026

At a glance

What this is: This is an identity governance blog arguing that IGA must anchor user access management as identities multiply across human and non-human populations.

Why it matters: It matters because IAM, PAM and policy controls cannot prove access is still justified unless governance continuously certifies ownership, scope and lifecycle across every identity type.

Context

User access management is moving from a human-centric administrative function to a governance problem spanning service accounts, APIs, bots and AI agents. When those identities can be created quickly, inherit broad rights and persist without clear ownership, periodic review models stop reflecting the real access state.

The operational gap is not authentication alone. The issue is whether access remains justified over time, whether entitlement changes are visible, and whether offboarding or deprovisioning actually happens when the business purpose ends.

In this article's framing, the typical enterprise is already exposed to identity sprawl rather than preparing for it. That makes continuous governance the baseline expectation, not an advanced maturity state.

Key questions

Q: What breaks when IGA is treated as a periodic review exercise instead of continuous governance?

A: Access drift outpaces the review cycle. By the time a quarterly or annual certification happens, service accounts, APIs and AI agents may already have expanded privileges, changed purpose or lost ownership. The result is governance that documents yesterday's state while attackers exploit today's access model.

Q: Why do overprivileged service accounts create such persistent cloud risk?

A: Overprivileged service accounts create persistent risk because they combine standing access, weak ownership, and broad lateral movement potential. When those accounts are not tightly reviewed, an attacker or insider can move from a small foothold to broader cloud access. The issue is not only permission size, but how long that privilege remains valid.

Q: How can organisations govern non-human identities more effectively?

A: Organisations should treat every non-human identity as an owned asset with a purpose, expiration, and review cycle. That means tracking tokens, certificates, API keys, and service accounts under one governance model so they do not become invisible shortcuts into critical systems. Effective NHI governance is lifecycle management, not just secret storage.

Q: What is the difference between IAM and IGA in enterprise identity management?

A: IAM focuses on access delivery. It verifies identity, grants permissions, supports SSO, and automates onboarding and offboarding. IGA focuses on governance. It evaluates whether access should remain, enforces policy, runs access reviews, and creates audit evidence. Together, they combine operational efficiency with control, compliance, and accountability.

Technical breakdown

Why periodic access reviews miss non-human identity drift

Periodic access reviews assume entitlement states remain stable long enough to be certified. In practice, service accounts, APIs and AI agents are created for integrations, then expanded as dependencies grow, often without a matching ownership model or lifecycle trigger. That means the review artefact is already stale by the time it is signed off. The technical failure is not only missed revocation. It is that access can change between review cycles without any control point seeing the change. Governance has to be tied to issuance, change and deprovisioning events, not only to calendar-based certification. That is the only way to make the review represent current risk rather than historical paperwork.Practical implication: Move certification from a periodic event to an event-aligned control that tracks entitlement change, ownership and offboarding.

Practical implication: Move certification from a periodic event to an event-aligned control that tracks entitlement change, ownership and offboarding.

How overprivileged service accounts become durable attack paths

A service account is a non-human identity used to run integrations, background tasks or machine-to-machine actions. Once that account inherits broader access than the original use case requires, it can become a durable path into critical systems because its activity blends into normal traffic. The risk is intensified when no one owns the account, no one can explain why each entitlement exists, and the privilege set is never revalidated after the automation changes. In that state, access is functionally permanent even when the business need is temporary. That is why governance matters more than provisioning alone: the account may be technically legitimate while still being operationally indefensible.Practical implication: Bind service account ownership, scope and review to the business process they support, not just to initial creation.

Practical implication: Bind service account ownership, scope and review to the business process they support, not just to initial creation.

Why IGA, IAM, PAM and policy control have different jobs

IGA governs whether access should exist, IAM enforces whether the identity can authenticate and be provisioned, PAM protects the highest-risk entitlements, and policy management keeps decisions consistent across user groups and contexts. The article's core point is that these functions are complementary, but only IGA can answer whether access is still justified and defensible across the full lifecycle. Without governance, IAM can keep accounts working, PAM can secure privileged sessions, and policy engines can apply rules, yet none of them can prove that the access set is still aligned to business need. That is the architectural gap this post is trying to close.Practical implication: Treat IGA as the control that validates the access model, not as a back-office reporting layer.

Practical implication: Treat IGA as the control that validates the access model, not as a back-office reporting layer.

Threat narrative

Attacker objective: The objective is to abuse legitimate identity access as a persistent, low-noise path into sensitive systems.

1. Entry occurs when an over-privileged human or non-human identity is created for a legitimate purpose but is never tightly scoped or owned.
2. Escalation follows as entitlements expand through added integrations, forgotten exceptions or reused access paths that no review cycle catches in time.
3. Impact appears when attackers or insiders use the identity's broad access to reach critical systems while activity looks like ordinary background traffic.

Breaches seen in the wild

• Kubeflow cryptomining attacks 2020: Exposed Kubeflow dashboards and a notebook's mounted Kubernetes service account let attackers run cryptominers on tens of ML clusters.
• Dropbox Sign breach 2024: A compromised back-end service account gave attackers Dropbox Sign customer data, including API keys, OAuth tokens and MFA information.

Read and download The State of NHI & AI Agent Breach Report 2026, covering 200+ breaches impacting Non-Human Identities including AI Agents.

NHI Mgmt Group analysis

IGA is now the control plane that makes access defensible, not merely functional. IAM can provision, PAM can contain and policy engines can standardise decisions, but only IGA can continuously prove that access is still justified. As identities multiply across employees and non-human actors, the governance layer becomes the only place where lifecycle, ownership and certification converge. Practitioners should treat IGA as the proof layer for user access management, not an optional reporting add-on.

Periodic certification is an access model from a slower identity era. The governance assumption was that access would remain stable long enough for human review to catch drift. That assumption fails when service accounts, APIs and AI agents can be created, extended and forgotten faster than the review cycle can react. The implication is not simply to add more reviews, but to recognise that calendar-based governance no longer matches the speed of identity change.

Unowned non-human identities create trust debt that compounds over time. Every service account or API with no clear owner, purpose or expiry accumulates entitlement ambiguity, and ambiguity is where both attack paths and audit failures begin. In practice, the problem is not just excess privilege but unaccountable privilege. Teams need to treat ownership as a governance requirement equal to access scope, because without it the entitlement can outlive the business need indefinitely.

Continuous governance is becoming the only scalable answer to identity sprawl. The article correctly frames UAM as a discipline that spans onboarding, role transitions and offboarding rather than a narrow access request workflow. That broader view matters because human and non-human identities now move through the same enterprise control surface, even if they behave differently. The practitioners who collapse governance into a point-in-time approval process will keep producing risk faster than they can remove it.

From our research library:

• Only 5.7% of organisations have full visibility into their service accounts, according to the Ultimate Guide to NHIs.
• Read next: Service Account Security Guide

What this signals

Continuous certification is becoming a governance requirement, not a maturity bonus. Access that can change faster than a review cycle cannot be governed safely by spreadsheet-style recertification. Programmes need lifecycle-aligned controls that connect ownership, scope and deprovisioning to the identity itself, especially for service accounts and automation identities.

Unowned non-human identities are the hidden source of entitlement drift. When no one is accountable for an API, bot or service account, privileges tend to accumulate quietly and survive long after the original use case has disappeared. That creates audit gaps, operational blind spots and an identity estate that security teams cannot confidently explain.

Only 5.7% of organisations have full visibility into their service accounts according to the Ultimate Guide to NHIs, which is why access governance must shift from assumptions to evidence. Teams that cannot see the estate cannot certify it, and they certainly cannot defend it to auditors or the board.

For practitioners

• Define ownership for every non-human identity Assign a named business and technical owner to each service account, API credential or bot so entitlement decisions are accountable throughout its lifecycle.
• Tie access reviews to lifecycle events Trigger certification when an identity is created, repurposed, expanded or offboarded, instead of relying only on quarterly or annual review cycles.
• Separate governance from enforcement Use IGA to validate access intent, IAM to enforce authentication and provisioning, and PAM to contain the highest-risk entitlements.
• Eliminate orphaned entitlements Inventory identities with no clear owner or purpose, then remove or re-scope privileges that no longer match the supporting business process.
• Prove access with audit-ready evidence Retain request, approval, certification and offboarding records so auditors can trace why each identity still has access.

Key takeaways

• User access management now spans human and non-human identities, so governance has to follow the full lifecycle rather than only the login event.
• Service accounts and other automation identities become durable risk when ownership, scope and review are not tied together.
• IGA is the layer that turns access from something that merely functions into something an enterprise can prove is still justified.

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.
• User Access Management: User access management is the set of policies, workflows, and controls used to decide who or what can access systems, applications, and data. It covers granting access, reviewing it, and removing it when it is no longer justified, which makes it a core identity governance function.
• Service Account: A special-purpose account used by applications, automated tools, or services rather than a human user to interact with systems, APIs, and infrastructure. Service accounts are a primary category of NHI and one of the most frequently exploited attack vectors.
• Access Certification: Access certification is the periodic review of whether an identity still needs its current entitlements. For NHIs, certification is only reliable when reviewers know the identity's owner, purpose, and expiry, otherwise stale machine access can persist long after the original use case has ended.

Deepen your knowledge

NHI governance, identity lifecycle management and workload identity security 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 or governance programme, it is worth exploring.