What should organisations prioritise first in IAM and IGA modernisation?

They should prioritise entitlement ownership, lifecycle revocation, and recertification before expanding feature scope. Those controls reduce immediate exposure from stale access and give the organisation a reliable base for cloud and AI adoption. Once ownership and revocation are dependable, more advanced automation becomes safer to introduce.

Why This Matters for Security Teams

IAM and IGA modernisation usually fails when organisations start with portals, approvals, or automation features before they have dependable entitlement ownership and revocation. That sequencing leaves stale access in place, which is the exact condition attackers and auditors both exploit. The risk is not just visibility. It is whether every entitlement has a clear owner, every joiner-mover-leaver event has a reliable trigger, and every privileged grant can be removed without manual clean-up. The NIST Cybersecurity Framework 2.0 reinforces this by tying identity governance to repeatable risk management, not one-time remediation.

NHIMG’s Ultimate Guide to NHIs shows why this baseline matters: 91.6% of secrets remain valid five days after notification, and 80% of identity breaches involve compromised non-human identities such as service accounts and API keys. Those findings point to a simple operational truth. If ownership and revocation are weak, modernisation only makes the blast radius larger. In practice, many security teams discover broken entitlement hygiene only after an access review, incident, or cloud migration has already exposed the gap.

How It Works in Practice

The first modernisation step is to make identity governance operationally reliable before expanding scope. That means every entitlement must map to a business or technical owner, every system account and API key must have a lifecycle record, and every deprovisioning path must actually revoke access rather than just close a ticket. Current guidance suggests treating IGA as a control plane for authoritative access decisions, not as a reporting layer.

A practical sequence looks like this:

• Inventory human and non-human entitlements, then flag unowned or orphaned access.
• Assign explicit ownership for applications, service accounts, secrets, and privileged roles.
• Automate lifecycle revocation for termination, project end, expired integrations, and stale access.
• Run recertification against high-risk access first, especially admin, production, and third-party accounts.
• Only after that, introduce broader workflow automation or deeper policy orchestration.

For non-human identity, this matters even more because service accounts and workload credentials often outlive the systems that created them. NHIMG’s research on Azure Key Vault privilege escalation exposure is a useful reminder that mis-scoped access in secret stores can turn a routine entitlement into a privilege-escalation path. The control objective is not perfect cataloguing. It is dependable removal, because revocation failures are what keep old access alive long after the business need has ended. These controls tend to break down when entitlements are distributed across cloud, SaaS, CI/CD, and third-party platforms because ownership data becomes fragmented and revocation depends on inconsistent downstream APIs.

Common Variations and Edge Cases

Tighter entitlement governance often increases operational overhead, so organisations have to balance speed against control quality. That tradeoff is real, especially in distributed environments where application owners, platform teams, and security teams all believe someone else owns the access record.

There is no universal standard for when to modernise everything at once versus stage the rollout. Current guidance suggests prioritising the highest-risk and most frequently abused access first: privileged roles, production service accounts, secrets with long TTLs, and externally shared credentials. In mature environments, recertification can be risk-based rather than universal, but only after ownership and revocation are trustworthy. In less mature environments, broad recertification programs often produce checkbox results without reducing exposure.

One common exception is where access is embedded in automation pipelines or vendor-managed integrations. In those cases, forcing manual approval workflows can slow the business without materially improving security. The better approach is to preserve lifecycle control while reducing human dependency through authoritative ownership, bounded expiration, and clear offboarding triggers. Organisations that modernise in this order usually gain a stronger base for cloud and AI adoption, because they are building on access that can be explained, reviewed, and removed instead of simply expanded.

Related resources from NHI Mgmt Group

• Should organisations prioritise external exposure or internal credential governance first?
• Should organisations prioritise IGA or identity security first?
• Should organisations prioritise passwordless or privileged access modernisation first?
• What should organisations prioritise first in an IGA programme, visibility or workflow automation?