When should organisations prioritise hard-to-integrate applications over easy wins?

Why This Matters for Security Teams

Teams usually start with the easiest integrations because they are fast to inventory, easy to automate, and visible to auditors. The problem is that “easy” often means already modern, already centralised, and already governed. The applications that stay manual are the ones with brittle auth, undocumented ownership, or embedded secrets, which is where exposure persists. NHI Mgmt Group notes that only 5.7% of organisations have full visibility into their service accounts, a reminder that hidden access is often the real backlog.

Prioritising hard-to-integrate systems is a risk decision, not a convenience decision. These systems often host stale credentials, excessive privileges, and orphaned integrations that do not show up in day-to-day controls. That makes them harder to defend with blanket policy and more likely to evade routine review. Guidance from the NIST Cybersecurity Framework 2.0 aligns with this risk-based approach: focus effort where governance gaps create the greatest likelihood and impact of loss. In practice, many security teams encounter the highest-risk application only after a secrets leak, access review failure, or incident response exercise has already exposed the gap.

NHIMG’s Ultimate Guide to NHIs frames the issue clearly: if an application cannot be governed, it is not a low-priority exception, it is latent exposure.

How It Works in Practice

Priority should shift from “what is easiest to integrate” to “what creates the most unmanaged identity risk.” A practical triage model starts by ranking applications on three questions: does it use secrets or service accounts, can access be rotated or revoked cleanly, and can ownership be assigned to a real team? The more answers are “no,” the more urgent the integration becomes.

For hard-to-integrate applications, security teams usually need to break the work into smaller governance steps instead of waiting for a perfect automation path. That often means:

• Discovering all non-human identities tied to the application, including API keys, certificates, and service accounts.
• Mapping each identity to a business owner and a technical owner.
• Reducing standing access before attempting full automation.
• Introducing rotation, expiry, or revocation controls even if provisioning remains partially manual.
• Moving the application behind a compensating control such as vaulting, proxying, or approval-based access until deeper integration is possible.

This approach matches the risk-first logic in Ultimate Guide to NHIs, especially where secrets linger or offboarding is incomplete. It also fits current guidance in NIST CSF 2.0, which treats identity governance, recovery, and continuous oversight as core security outcomes rather than optional maturity upgrades. The operational point is simple: a difficult application that cannot be rotated, reviewed, or decommissioned safely deserves earlier attention than a low-risk system that is already under control. These controls tend to break down when the application is embedded in legacy infrastructure with no reliable inventory, no API access, and no clear owner because governance cannot be automated there.

Common Variations and Edge Cases

Tighter prioritisation often increases integration cost, requiring organisations to balance rapid wins against the operational reality of legacy environments. That tradeoff matters because not every difficult system is equally urgent. A hard-to-integrate internal tool with limited privilege may wait behind a customer-facing integration that already has broad access and external exposure. Best practice is evolving, but current guidance suggests ranking by residual risk, not technical difficulty alone.

There are also cases where a “hard” application is only hard because ownership is unclear, not because the control design is impossible. In those situations, the first task is governance cleanup, not tooling. Conversely, if an application supports privileged automation, third-party access, or long-lived secrets, delay becomes expensive fast. NHI Mgmt Group reports that 97% of NHIs carry excessive privileges and 79% of organisations have experienced secrets leaks, which is why difficult systems should not be deferred simply because they are inconvenient. If a system cannot prove who accesses it, how access expires, or how it is revoked, it should move ahead of easy wins even if the integration path is messy.

Related resources from NHI Mgmt Group

• When should organisations prioritise SAP IDM replacement over other IAM work?
• Should organisations prioritise external exposure or internal credential governance first?
• How should security teams prioritise NHI remediation in cloud environments?
• Why is it important to integrate identity and data governance?