TL;DR: Invisible keyholders create a governance blind spot for non-human identities, where credentials and access paths outgrow traditional visibility and lifecycle controls, according to Veza. That gap matters because identity programmes cannot govern what they cannot discover, certify, or revoke in time.
At a glance
What this is: Veza's analysis says non-human identities become a control gap when hidden access paths and credentials outpace discovery, certification and revocation processes.
Why it matters: IAM, IGA and PAM teams need this lens because unmanaged machine access creates blind spots across inventory, entitlement review and offboarding for both NHI and adjacent identity programmes.
Context
Invisible keyholders are non-human identities whose access is real but poorly surfaced to the governance processes that are supposed to control it. In practice, that means service accounts, tokens, keys and other machine credentials can accumulate privilege faster than teams can inventory, review or revoke them.
The identity problem here is not just discovery, but lifecycle control. When access paths exist outside the normal owner, approver and recertification loops, IAM and IGA controls lose the ability to prove who or what can reach sensitive systems, and PAM cannot constrain what it cannot see.
That makes NHI governance a programme design issue rather than a tooling add-on. The article's starting position is typical for modern enterprises, where machine access sprawl is common and control ownership is fragmented across platform, security and application teams.
Key questions
Q: What breaks when non-human identities have more access than they need?
A: When non-human identities carry excess access, a single compromise can move from a local incident to broad cloud control. Over-privileged service accounts, tokens, and AI agents can reach storage, compute, and IAM functions that were never necessary for their job. The result is larger blast radius, faster lateral movement, and much harder containment.
Q: Why do excessive privileges on service accounts create more risk than secrecy alone?
A: Excessive privilege turns a valid credential into broad administrative reach. Even if the secret remains undisclosed, the account can still access data or systems far beyond its intended task. That is why entitlement scope, not only secret exposure, determines the blast radius of a compromised or forgotten non-human identity.
Q: What are the signs that NHI governance is failing in an enterprise?
A: Common warning signs include unclear ownership for service accounts, secrets stored in code or configuration instead of managed vaults, infrequent rotation, and weak offboarding of API keys. Other red flags are excessive permissions, third-party exposure without controls, and low visibility into where non-human identities exist or how they are used across the stack.
Q: How should security teams connect PAM with IGA and posture management?
A: Security teams should use IGA to decide who should receive privileged access, PAM to deliver the access for a task, and posture management to find where privilege has drifted or persisted. The three disciplines solve different parts of the same identity problem and should share signals.
Technical breakdown
Why hidden machine access escapes identity inventory
Non-human identities often sit behind service accounts, automation pipelines, cloud roles, API keys and delegated application permissions. Those identities are easy to create and hard to centralise because their existence is distributed across cloud control planes, application configs, CI/CD systems and third-party integrations. Once that spread occurs, discovery tools may find the account but not the business owner, purpose, or valid scope. Without those attributes, an inventory becomes a list of artifacts rather than a governable identity estate.
Practical implication: build an authoritative inventory that ties every machine identity to owner, purpose, scope and expiry.
How privilege drift turns non-human identities into keyholders
A keyholder is any identity that can unlock sensitive resources, whether it is a human admin or a machine credential with broad entitlements. In NHI environments, privilege drift happens when access is granted for a narrow task but never reduced as the workload changes. Over time, long-lived credentials and inherited permissions create hidden administrative reach. This is why entitlement scope matters as much as credential secrecy: a secret with excessive rights is still a key to the kingdom.
Practical implication: review machine entitlements for scope creep, not just credential age.
Why certification and offboarding fail for machine identities
Access review processes are usually built around stable ownership and periodic certification windows. Machine identities break that assumption when they are created dynamically, reused across systems, or left behind after the workload, vendor relationship or automation job changes. Offboarding also becomes difficult because the account may not have a human employee relationship attached to it. The governance failure is not merely missed cleanup; it is a lifecycle model that cannot keep pace with how NHIs are actually provisioned and retired.
Practical implication: treat offboarding and recertification as identity lifecycle controls for machines, not only for people.
Threat narrative
Attacker objective: The attacker objective is to exploit unmanaged machine access for unauthorized movement, persistence or sensitive-system control.
- Entry occurs when machine credentials, service accounts or delegated access paths are created outside strong governance and remain undiscovered.
- Escalation follows when those identities retain broader permissions than their current workload needs, turning routine access into privileged reach.
- Impact occurs when hidden keyholders can reach sensitive systems, data stores or administrative functions without timely review or revocation.
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.
Read our 52 NHI Breaches Analysis report for a comprehensive view of breaches impacting Non-Human Identities including AI Agents.
NHI Mgmt Group analysis
Invisible keyholders are a governance failure, not just a visibility problem. The core issue is that machine identities can hold real authority while remaining outside the normal ownership, review and offboarding model. If the programme cannot connect a credential to a purpose and accountable owner, it cannot govern it. That makes discovery necessary but insufficient, and it pushes NHI control into the centre of identity architecture.
Excess privilege is the control gap that matters most here. Hidden access becomes dangerous when the entitlement granted to an NHI exceeds the task it actually performs. The article's logic aligns with OWASP-NHI NHI-05 and NHI-07: overprivilege and long-lived secrets combine to create a standing access estate that is easy to forget and hard to contain. Practitioners should treat entitlement scope as the governing variable, not just whether the credential exists.
Credential lifecycle without lifecycle ownership is the named concept this article surfaces. A secret can be rotated and still remain dangerous if no one owns its retirement path, entitlement scope or downstream dependency map. That is why machine identities need lifecycle governance with the same seriousness as human joiner-mover-leaver processes. The practitioner conclusion is simple: if no team owns the full lifecycle, the keyholder is effectively invisible.
PAM alone does not solve invisible keyholders. Privileged access controls can restrict interactive human administration, but they do not by themselves resolve machine-to-machine authority that is embedded in application logic, cloud roles or automation. The governance gap spans IAM, IGA and PAM together because the problem is delegated access without durable accountability. Teams need a control model that unifies inventory, ownership and revocation across those domains.
This issue is becoming a default state in modern cloud estates. As environments expand, the number of non-human identities grows faster than the governance processes built to manage them. That means machine identity control is no longer a niche sub-discipline; it is a baseline security requirement for any organisation that depends on cloud workloads, automation or AI-enabled operations. Practitioners should expect identity sprawl unless they design for it explicitly.
From our research library:
- 97% of NHIs carry excessive privileges, increasing unauthorised access and broadening the attack surface, according to the Ultimate Guide to NHIs.
- Read next: Ultimate Guide to NHIs — Key Challenges and Risks
What this signals
Credential lifecycle without lifecycle ownership: machine identities create security debt when creation is easy, but retirement is unowned. The result is a control model that can issue access faster than it can prove why that access still exists, so governance has to move from account counting to accountable lifecycle state.
NHI programmes need to treat entitlement scope as a live security variable, not a once-per-quarter review artifact. If a workload can inherit broad rights and retain them after its function changes, the identity estate will keep expanding even when the number of accounts appears stable.
For practitioners
- Map every machine identity to an owner and purpose Create a governed inventory that records the business service, human owner, creation source and intended expiry for each non-human identity.
- Review entitlements against actual workload need Compare granted permissions with the minimum access required by the current workload, integration or automation job, then remove inherited rights that are no longer justified.
- Enforce offboarding for abandoned service accounts Tie decommissioning to application retirement, vendor exit and pipeline teardown so credentials cannot survive the workload they were created for.
- Bring privileged machine access into PAM review Classify machine credentials that can change policies, read secrets or reach administrative interfaces as privileged access and place them under tighter review.
- Build recertification around entitlement scope Use access reviews to confirm not only that the identity exists, but that its permissions, ownership and business need are still valid.
Key takeaways
- The article's core warning is that non-human identities can hold important access while remaining outside the normal governance path.
- The scale of the problem is not theoretical, with 97% of NHIs carrying excessive privileges in the cited statistic.
- The control answer is stronger lifecycle ownership, because discovery without ownership cannot deliver reliable certification or revocation.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
OWASP Non-Human Identity Top 10 addresses the attack and risk surface, while NIST CSF 2.0, CIS Controls v8 and NIST SP 800-53 Rev 5 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Non-Human Identity Top 10 | NHI-05 — Overprivileged NHI | The article centres on machine identities holding more access than their role requires. |
| NHI-07 — Long-Lived Secrets | Invisible keyholders are sustained by credentials that remain active beyond their useful life. | |
| Recommendation — Review NHI permissions against actual workload needs and remove excess rights. Shorten the lifespan of machine secrets and revoke credentials when the workload changes. | ||
| NIST CSF 2.0 | PR.AA-05 — Access Permissions, Entitlements and Authorizations | The article is fundamentally about discovering and governing entitlements for non-human identities. |
| Recommendation — Map every NHI to explicit permissions, entitlements and authorization owners. | ||
| CIS Controls v8 | CIS-5 — Account Management | NHI sprawl becomes a control problem when accounts are created, reused and left behind without management. |
| Recommendation — Centralise account management for service accounts and other machine identities. | ||
| NIST SP 800-53 Rev 5 | IA-5 — Authenticator Management | Credentials and tokens are the mechanism by which invisible keyholders persist. |
| Recommendation — Apply authenticator management to rotate, revoke and track machine credentials. | ||
Key terms
- Invisible Keyholder: A hidden non-human identity that holds credentials or delegated access without being visible in normal governance records. These identities are often embedded in pipelines, scripts, or platform integrations, which makes ownership, review, and revocation difficult until something breaks.
- Machine identity lifecycle: Machine identity lifecycle is the full governance process for a non-human identity from creation to retirement. It includes provisioning, access scoping, rotation, renewal, offboarding, and auditability, and it fails when any one of those steps is handled manually or inconsistently.
- Entitlement Scope: Entitlement Scope is the exact set of actions, resources, or permissions attached to an identity during a session. In cloud and NHI governance, scope is as important as duration because broad permissions can turn a short-lived grant into a high-impact access event. Narrow scope is a core control objective.
- Access Graph: An access graph is a relationship model that links identities, permissions, data objects, and system interactions. In NHI governance, it helps security teams see the full path from an agent or user to the action it can take, which is more useful than isolated account reviews.
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.
Published by the NHIMG editorial team on August 25, 2026.
Updated on October 7, 2026.
NHI Mgmt Group, the independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org