By NHI Mgmt Group Editorial TeamPublished 2025-08-06Domain: Best PracticesSource: CYATA

TL;DR: Enterprise vaults centralise secrets, automate rotation and auditing, and integrate with pipelines and identity systems, but they also expose governance gaps when secrets are scattered across hybrid, multi-cloud, and AI-driven environments, according to CYATA. The real issue is not storage alone: access patterns, lifecycle automation, and accountability assumptions determine whether vaulting actually reduces risk.


At a glance

What this is: This is a CYATA explainer on enterprise vaults and secrets management, with the key finding that centralised vaulting only works when lifecycle, access, and audit controls match the complexity of modern human, NHI, and agentic access patterns.

Why it matters: It matters because IAM, IGA, PAM, and security teams are being asked to govern secrets that span pipelines, cloud services, and AI agents, where weak lifecycle control turns credentials into a persistent attack path.

By the numbers:

👉 Read CYATA's blog post on enterprise vaults and secrets management


Context

Enterprise vaults are central repositories for credentials, tokens, certificates, and other secrets that let people, workloads, and tools authenticate to systems. The governance problem is not just where those secrets are stored, but whether access, rotation, revocation, and audit are controlled consistently across cloud, on-premises, CI/CD, Kubernetes, and AI-enabled workflows.

CYATA frames vaults as the control plane for secrets management, but the deeper issue is identity lifecycle at machine scale. As organisations add more tenants, services, and AI agents, secret sprawl becomes harder to inventory, harder to audit, and easier to abuse when standing access is allowed to persist beyond its operational need.


Key questions

Q: How should security teams govern secrets for workloads and service accounts?

A: Security teams should issue secrets through a vault, bind them to a named workload or service account, and give them a short expiry tied to a clear operational purpose. The main goal is to eliminate standing access and make revocation automatic when the task ends, the workload changes, or the identity is no longer trusted.

Q: Why do secrets become a bigger risk in cloud and DevOps environments?

A: Secrets become riskier when they are copied across pipelines, containers, and cloud services faster than teams can rotate or revoke them. Each extra storage point increases exposure, and each manual process adds delay. When secrets are widely reused, one leak can turn into a broad access problem instead of a single credential issue.

Q: What do organisations get wrong about enterprise vaults?

A: Many teams assume a vault automatically solves secrets risk once credentials are stored centrally. In reality, the hard part is governance: ownership, least privilege, logging, rotation, and revocation still have to be designed, enforced, and monitored. A vault without those controls simply concentrates the problem in one place.

Q: How do you know if vault-based secrets management is working?

A: It is working when secrets are no longer hardcoded, retrieval is limited to approved identities, expired credentials are actually unusable, and audit logs can show who accessed what and why. If teams cannot prove those four outcomes, the vault is reducing storage risk but not yet delivering full governance.


Technical breakdown

How enterprise vaults centralise secrets and policy enforcement

An enterprise vault stores secrets in encrypted form and mediates access through policy rather than direct distribution. In practice, applications and users authenticate with methods such as AppRole, JWT, LDAP, or SSO, then receive only the secret or credential they are authorised to use. The value is not the vault itself, but the control boundary it creates: a single place to enforce role-based or attribute-based access, lifecycle rules, and audit logging across multiple environments. When this boundary is fragmented, secrets end up embedded in code, pipelines, and runtime configs, which makes containment much harder.

Practical implication: Centralise access policy and audit around the vault, not around each application team’s ad hoc secret handling.

Why automated rotation and leasing matter for NHI secrets

Vaults reduce exposure by issuing secrets dynamically, attaching leases, and revoking credentials when the lease expires or a policy changes. That behaviour matters most for non-human identities, where long-lived API keys and service credentials often outlive the business task they were created for. Rotation alone is not enough if the secret is still broadly usable, but automatic expiration does shorten the window in which a leaked credential remains valid. For cloud and DevOps environments, the operational question is whether the secret lifecycle is truly ephemeral or only periodically refreshed.

Practical implication: Prioritise dynamic issuance and short-lived leases for machine credentials that would otherwise become standing access.

How vault integrations change the identity attack surface

Modern vaults integrate with CI/CD tools, Kubernetes, cloud IAM, SIEM, and identity providers so secrets can be consumed at runtime without embedding them in source or images. That integration reduces hardcoded exposure, but it also means the vault becomes a dependency in the access path for workloads and agents. If audit signals are incomplete or revocation is slow, the vault can hide risk rather than remove it. For agentic workflows, the question is not just whether a system can retrieve a secret, but whether the access pattern is governable after retrieval.

Practical implication: Treat each integration as part of the trust boundary and verify that retrieval, logging, and revocation are all enforceable.



NHI Mgmt Group analysis

Enterprise vaults solve distribution, not governance. A central repository can reduce hardcoded secrets and improve auditability, but it does not by itself resolve who should have access, for how long, or under which lifecycle condition. In practice, vaults succeed only when IAM, PAM, and NHI governance are aligned around the same entitlement model. Practitioners should treat the vault as an enforcement point, not as the security programme itself.

Secret sprawl is a lifecycle failure before it is a storage problem. The challenge is not simply that secrets exist in many places, but that their ownership, rotation cadence, and revocation triggers are often unclear. That creates invisible persistence across pipelines, cloud services, and application runtimes. The implication is that lifecycle ownership must be explicit across every identity type that can consume a secret.

AI agents turn secret governance into an accountability problem. Once an agent can request and use secrets as part of runtime decision-making, access is no longer tied neatly to a human operator or a fixed workflow. That makes audit trails, approval boundaries, and revocation logic harder to interpret. The implication is that secret governance must now account for dynamic non-human decision paths, not just static service accounts.

Dynamic secret delivery is only as good as the surrounding control plane. Leasing and rotation reduce exposure windows, but they do not fix weak segmentation, poor logging, or overbroad entitlement design. A vault that issues secrets quickly can still amplify blast radius if the consuming identity is overprivileged. Practitioners should focus on the entire access path, from issuance to revocation to post-use traceability.

Ephemeral credentials create trust debt when organisations cannot prove expiry, ownership, and reuse boundaries. The more aggressively teams automate secret issuance, the more they need to prove that every credential is bound to a purpose, a subject, and a revocation event. Without that proof, secrets management becomes a set of operational assumptions rather than a control system. The result is measurable risk reduction only when lifecycle evidence is retained and enforceable.

From our research:

  • 88% of security professionals are concerned about secrets sprawl, with 49% of those in larger organisations described as "very concerned", according to The 2024 State of Secrets Management Survey.
  • In the same survey, 54% of organisations said they are dissatisfied with their current secrets management solution because not all secrets are secured, and 43% cited lack of central management.
  • That pattern reinforces why practitioners should review the Guide to the Secret Sprawl Challenge alongside vault strategy, especially where rotation and inventory still depend on manual processes.

What this signals

Secret sprawl is now a governance signal, not just an operational inconvenience. When 54% of organisations say their current solution leaves secrets unsecured or poorly managed, the issue is no longer isolated leakage. It points to a control-plane problem across discovery, lifecycle, and entitlement evidence, which is exactly where IAM and PAM teams need to focus.

For identity programmes, the next phase is not more secret storage. It is tighter evidence that each credential has a subject, a purpose, a lease, and a revocation path, plus a clean audit trail that can survive cloud, CI/CD, and agentic runtime use.


For practitioners

  • Map every secret to an owning identity and lifecycle trigger Record which human, workload, or agent owns each credential, what event should revoke it, and what system proves that revocation happened. That includes service accounts used in CI/CD, Kubernetes, and cloud runtime workflows.
  • Replace hardcoded credentials with dynamic issuance paths Use vault-backed retrieval so applications and pipelines obtain short-lived secrets at runtime instead of storing long-lived API keys in code, images, or configuration files.
  • Separate vault access policy from application convenience Apply least privilege to the identities that retrieve secrets, not only to the resources those secrets unlock. Review whether broad read access to the vault creates a hidden blast radius even when individual secrets are rotated.
  • Log secret retrieval with enough context for audit and triage Capture identity, timestamp, method, outcome, and consuming system so access can be traced back to a specific runtime event. Pair those logs with SIEM alerting for unusual retrieval bursts or off-pattern use.

Key takeaways

  • Enterprise vaults reduce exposure only when they are embedded in a broader identity governance model.
  • Secret sprawl persists because ownership, rotation, and revocation are still too often treated as operational tasks instead of control requirements.
  • For IAM and NHI teams, the question is whether every secret can be tied to a lifecycle event, an owner, and a verifiable audit trail.

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 address the attack and risk surface, while NIST CSF 2.0, NIST SP 800-53 Rev 5 and NIST Zero Trust (SP 800-207) set the governance and control requirements practitioners need to meet.

FrameworkControl / ReferenceRelevance
OWASP Non-Human Identity Top 10NHI-03This article centres on secret sprawl and lifecycle control for non-human identities.
NIST CSF 2.0PR.AC-4Vault policy and least privilege align with access control governance for secrets.
NIST SP 800-53 Rev 5IA-5IA-5 directly addresses authenticator and secret lifecycle management.
NIST Zero Trust (SP 800-207)Zero trust principles fit secrets delivery where trust must be continuously verified.

Review secret retrieval paths against PR.AC-4 and restrict access to the minimum necessary identities.


Key terms

  • Enterprise Vault: An enterprise vault is a central system for storing and issuing secrets such as API keys, tokens, certificates, and passwords. It does more than hold credentials, it enforces policy, logs access, and often automates rotation and expiration so secrets are not left as standing access across systems.
  • Secrets Sprawl: Secrets sprawl is the uncontrolled spread of credentials across code, pipelines, containers, cloud services, and ad hoc storage locations. It makes inventory, rotation, and revocation difficult, which is why a single leaked secret can become a broad identity and access problem rather than an isolated event.
  • Secret Leasing: Secret leasing is the practice of issuing a credential for a limited period and making it unusable after the lease expires. In identity governance terms, it creates a verifiable end point for access, which is especially important for non-human identities that should not retain standing privilege.
  • Runtime Secret Retrieval: Runtime secret retrieval means an application or workload fetches credentials when it needs them instead of storing them permanently. This reduces hardcoded exposure, but it only improves security if the retrieval path is tightly controlled, logged, and matched to the identity that is actually using the secret.

What's in the full article

CYATA's full blog post covers the operational detail this post intentionally leaves for the source:

  • Specific vault deployment patterns for on-premises, cloud, and SaaS environments
  • Examples of how AppRole, JWT, LDAP, and SSO are used to authenticate different identity types
  • Integration details for CI/CD, Kubernetes, cloud IAM, and SIEM workflows
  • Vendor-by-vendor feature comparisons across enterprise vault, DevOps, cloud, and PAM approaches

👉 The full CYATA post covers vault operation, identity integrations, and product selection considerations.

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 identity security programme, it is worth exploring.
NHIMG Editorial Note
Published by the NHIMG editorial team on 2025-08-06.
NHI Mgmt Group — the independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org