By NHI Mgmt Group Editorial TeamBased on Opnova: “The Business Case for Governing AI Agents” (July 8, 2026)

TL;DR: Ungoverned AI agents are already creating measurable cost through secrets management drag, audit overruns, and standing credential exposure, according to Opnova's analysis, which also cites developer time loss, exploitable stale credentials, and multi-million-dollar compliance burdens. The real issue is that existing joiner-mover-leaver and certification processes were built for stable identities, not rapidly multiplying agents that inherit human credentials.


At a glance

What this is: This is a governance analysis of AI agent sprawl showing that the cost is already showing up in audit burden, secrets management drag and credential exposure.

Why it matters: It matters because IAM, IGA and PAM teams now have to govern a fast-growing non-human identity population that can outpace human-era processes and budget assumptions.

By the numbers:

  • GitGuardian retested credentials confirmed valid in 2022 and found 64% still exploitable four years later, according to Opnova.
  • KPMG's 2025 SOX survey put the average program at $2.3 million and more than 15,000 person-hours a year, according to Opnova.
  • McKinsey's 2025 State of AI survey found 62% of organisations are experimenting with AI agents but only 23% have scaled one into even a single business function, according to Opnova.

Context

AI agent sprawl is now a governance and cost problem, not a hypothetical future issue. In practice, the article argues that the same credential, access review and offboarding weaknesses already present in many environments become more expensive when AI agents multiply those weaknesses at machine speed.

For identity teams, the important shift is that the control question is no longer whether agents can be granted access, but whether they can be counted, owned, certified and revoked with the same discipline applied to other non-human identities. That makes this a programme design problem as much as a risk problem.

The article also distinguishes between open-ended agent platforms that create sprawl and bounded AI-native solutions that are easier to govern. That distinction is typical of the current market conversation, but the author uses it to anchor a pragmatic cost argument rather than a product selection debate.


Key questions

Q: How do security teams detect AI agent sprawl before it becomes a breach issue?

A: Look for identity-layer signals rather than only approved application lists. Track authentication events, OAuth grants, unusual scope growth, and agents that remain active after the business need has ended. If discovery depends only on posture scans, unmanaged agents will stay invisible until they are already operating against sensitive systems.

Q: Why do AI agents increase audit risk even when no breach has occurred?

A: AI agents increase audit risk because they expand the number of identities, credentials, and approvals that must be explained to auditors. If those agents are not in certification scope, the organisation cannot prove ownership, least privilege, or revocation. The result is audit delta, which becomes a finding even before an incident occurs.

Q: What are the signs that AI governance is failing in the enterprise?

A: Common warning signs include rapid growth in AI use without matching policy coverage, sensitive files being copied into personal accounts, and a large share of AI apps carrying high or critical risk. Another indicator is weak visibility into who is using which tools and what data they are sending. If teams cannot answer those questions, governance is not working as intended.

Q: How should organizations approach the governance of AI agents?

A: Organizations should adopt a governance framework that incorporates continuous visibility, adaptive IAM practices, and stringent policy-based controls. This ensures that all agent actions are tracked, authorized appropriately, and assessed for compliance.


Technical breakdown

Why AI agent sprawl creates identity governance drag

AI agents behave like a new class of non-human identity that inherits the same basic control requirements as service accounts, API keys and workload identities, but at much higher creation rates. If each agent needs credentials, ownership, scope and offboarding, then every additional agent adds governance overhead even when the task it performs is legitimate. The core problem is not the model itself. It is the multiplication of identities faster than manual processes can inventory, review and retire them. That is why this starts as administrative drag and becomes a security issue when governance cannot keep pace.

Practical implication: treat agent volume as a governance load factor, not just a usage metric.

Standing credentials and stale access turn sprawl into exposure

The article links agent sprawl to the wider secrets-management problem: credentials are stored in too many places, remain valid too long and often lack a clear owner. When an agent is given standing credentials, the access persists beyond the task boundary and creates a larger attack surface for misuse or lateral movement. This is the same structural weakness seen in broader non-human identity estates, where long-lived secrets remain exploitable long after they were issued. The issue is not whether the agent is useful. It is whether its access is time-bound, owned and revocable in a way that survives operational churn.

Practical implication: inventory standing agent credentials and tie each one to a named owner and expiry condition.

Why open-ended agent platforms outpace conventional certification

Certification and joiner-mover-leaver controls assume identities remain stable long enough to be reviewed after the fact. Open-ended agent platforms break that assumption because teams can create many agents quickly, change their scope rapidly and leave them in place without a clean human analogue for offboarding. In that environment, access review becomes an artefact exercise rather than a meaningful control unless the organisation has accurate inventory, lifecycle ownership and a way to separate agent actions from human actions. The practical lesson is that governance must shift from periodic review to continuous lifecycle visibility for every agent identity.

Practical implication: move agent governance closer to issuance and lifecycle events instead of relying on periodic certification alone.


Threat narrative

Attacker objective: The objective is to exploit ungoverned agent identities and their credentials to widen exposure, increase control failures and create downstream breach or audit impact.

  1. Entry occurs when a human user or developer creates multiple AI agents through a general model platform without a separate governance workflow for each new identity.
  2. Credential access follows as each agent acquires its own keys, grants or standing credentials, often with no documented owner or expiry discipline.
  3. Escalation and impact occur when the expanded agent population overwhelms manual review, leaves stale access in place and widens the breach and audit surface.

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


NHI Mgmt Group analysis

AI agent sprawl is already a governance cost, not a future risk: Organisations are paying for it today in engineering hours, certification effort and unresolved credential debt. The article is right to shift the conversation away from speculative harm and toward measurable operational drag. For identity leaders, that means AI agent governance must be funded as part of the identity programme, not parked as a future AI exception.

Sprawl reveals a lifecycle failure, not just a security gap: The real issue is that joiner-mover-leaver discipline was designed around identities that stay stable long enough to be reviewed. That assumption fails when agents are created in bulk, changed quickly and retired inconsistently. The implication is that lifecycle governance has to account for machine-speed identity churn, not human-paced administration.

Standing credential exposure window is the operative failure mode: Agents that inherit human credentials inherit the same stale-access problem, but with more volume and less visibility. The article shows that the governance debt is not theoretical, because the cost already appears as manual secrets handling and audit overrun. Practitioners should read that as evidence that credential lifecycle control is now a core AI agent governance requirement.

Open-ended agent platforms and bounded AI-native solutions should not be governed as if they create the same risk profile: The article usefully separates sprawl by default from use-case-bounded deployment. That distinction matters because governance overhead, review complexity and audit defensibility differ sharply across the two patterns. The practitioner conclusion is to price the identity model, not the label on the AI system.

AI agent governance is becoming a control-plane issue for identity teams: Once agent identities become numerous enough to affect audit scope and operational cost, they are no longer a sidecar to IAM. They become part of the core access fabric. That is where NHI governance, lifecycle control and privilege management converge, and where programme boundaries need to be redrawn.

From our research library:

What this signals

Credential growth is the pressure point: The article makes clear that the governance problem starts before any incident, because each new agent introduces another access path, another owner problem and another review burden. That is why identity programmes need to measure agent population growth as a control load, not as a by-product of innovation.

Access review processes will need to move closer to issuance: Periodic certification is too slow when agents can be created, repurposed and retired faster than the review cycle closes. Organisations should expect lifecycle controls, ownership evidence and exception handling to become the practical centre of AI agent governance.

AI agent sprawl is a scope problem as much as a security problem: The difference between bounded and open-ended deployments matters because it determines how much manual governance the programme will absorb. Teams that cannot see that distinction will overestimate their audit readiness and underestimate their credential exposure.


For practitioners

  • Inventory every agent identity Create a current count of deployed agents, the applications they touch and the credentials each one uses. If you cannot name an agent, you cannot certify, revoke or scope it.
  • Separate agent credentials from human credentials Stop letting agents borrow employee access where possible and assign each agent its own identity, ownership record and revocation path.
  • Classify standing access as audit exposure Flag any agent credential that has no documented owner, no rotation schedule or no clear expiry as an audit finding waiting to happen.
  • Move lifecycle events into the control path Treat agent creation, scope change and retirement as lifecycle events that must feed governance records immediately instead of waiting for periodic certification.
  • Distinguish open-ended from bounded deployments Track which agent systems are broad platforms and which are narrow, use-case-bounded implementations, because they demand different governance effort and review depth.

Key takeaways

  • AI agent sprawl is already consuming operational capacity through secrets handling, access review work and unresolved ownership, which makes it a current governance expense rather than an abstract future risk.
  • The article shows that the strongest cost signals are lifecycle related: standing credentials, stale access and certification gaps all become harder to control as agent counts rise.
  • Identity teams should price agent governance as a lifecycle and audit control problem, not just as an AI deployment issue, because that is where the measurable cost sits.

Standards & Framework Alignment

This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.

OWASP Agentic AI Top 10, OWASP Non-Human Identity Top 10 and MITRE ATT&CK address the attack and risk surface, while NIST SP 800-53 Rev 5 sets the governance and control requirements practitioners need to meet.

FrameworkControl / ReferenceRelevance
OWASP Agentic AI Top 10ASI03 — Identity & Privilege AbuseThe article centres on agents inheriting and multiplying access in ways governance cannot track.
Recommendation — Restrict agent privileges to the minimum lifecycle scope and review privilege inheritance at issuance.
OWASP Non-Human Identity Top 10NHI-01 — Improper OffboardingThe article repeatedly links cost and exposure to agents that are never cleanly revoked or retired.
NHI-05 — Overprivileged NHIStanding credentials and broad access are the main drivers of the exposure described here.
Recommendation — Require explicit offboarding for every agent identity and verify revocation in the identity record. Audit agent entitlements for scope creep and remove any access that is not task-specific.
NIST SP 800-53 Rev 5IA-5 — Authenticator ManagementThe cost argument hinges on unmanaged secrets and credentials that remain valid too long.
Recommendation — Apply authenticator lifecycle controls to rotate, revoke and track agent credentials continuously.
MITRE ATT&CKTA0006;TA0008 — Credential Access; Lateral MovementThe article ties stale credentials and sprawl to expanded breach exposure and movement paths.
Recommendation — Map agent credential sprawl to credential access and lateral movement risk in your detection and response model.

Key terms

  • Agent Identity: An agent identity is the set of attributes, credentials and permissions assigned to an autonomous software entity. It is treated as a non-human identity because it can authenticate, act on systems and accumulate access over time, which creates governance, audit and lifecycle obligations similar to other production identities.
  • Standing Credential: A standing credential is any secret that remains usable until it is manually rotated or revoked. In NHI governance, it creates durable access that can be stolen, replayed, or propagated from trusted tooling unless runtime boundaries and expiry are built in.
  • Lifecycle Governance: Lifecycle governance is the set of controls that cover creation, assignment, review, rotation, and retirement of identities and credentials. For NHIs, it is the difference between a temporary automation asset and a persistent access risk. Strong lifecycle governance keeps ownership and expiry tied to actual business use.
  • Audit Delta: The gap between the identities an organisation can prove are in scope and the identities actually operating in production. For AI agents, audit delta appears when credentials, owners, or certifications are missing, making compliance evidence incomplete even when systems appear functional.

Deepen your knowledge

NHI governance, agentic AI identity, and machine 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 identity programme, it is worth exploring.
NHIMG Editorial Note
Published by the NHIMG editorial team on July 9, 2026.
Updated on October 7, 2026.
NHI Mgmt Group, the independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org