TL;DR: Palo Alto Networks’ planned acquisition of CyberArk underscores a broader shift in privileged access security: vaults protect credentials, but real-time controls protect access itself, according to Silverfort. The practical break from vault-centric PAM is that identity teams now need enforcement at session time, not just stronger storage and rotation.
At a glance
What this is: This is an analysis of why vault-centric PAM is giving way to real-time privileged access security and what that means for NHI and privileged identity governance.
Why it matters: It matters because IAM teams have to govern privileged access across humans and NHIs without assuming that storing secrets in a vault is the same as controlling the session.
👉 Read Silverfort's analysis of why PAM is shifting from vaults to real-time access security
Context
Privileged access security is shifting because the control point has moved from the credential store to the access session itself. In practice, that means vaulting a password no longer solves the core problem if the privileged session can still be abused after checkout or retrieval.
For IAM and NHI programmes, this is a governance change as much as an architecture change. Service accounts, scripts, automation tools, and AI agents all create privileged access patterns that do not fit neatly into legacy vault-first workflows, especially when access needs to be time-bound, context-aware, and continuously enforced.
Key questions
Q: What breaks when privileged access is controlled only by a vault?
A: A vault controls where the credential sits, but not what happens after the credential is released. Once the password is checked out or exposed, attackers can use memory theft, malware, insider misuse, or session abuse to extend impact. Privileged access therefore needs inline enforcement, not only protected storage.
Q: When should organisations move from vault-centric PAM to real-time privileged access controls?
A: They should move when access is dynamic, hybrid, or shared across human admins and NHIs. If a team depends on service accounts, automation, or cloud administration, checkout-based processes add friction without enough control. Real-time controls become necessary when the session, not the secret store, is the true risk boundary.
Q: How do service accounts complicate privileged access governance?
A: Service accounts turn privileged access into a machine-scale governance problem because each credential can be embedded in scripts, apps, or automation flows. That makes manual checkout, approval chains, and periodic rotation harder to operationalise consistently. The better control point is runtime authorisation tied to the actor and context.
Q: Who is accountable when a privileged session is abused after credential checkout?
A: Accountability sits with the programme that allowed access to be governed only at release time instead of at use time. Compliance teams, PAM owners, and identity architects all need to review whether their control design still assumes a credential store is enough. NIST Zero Trust Architecture and OWASP NHI guidance both support continuous verification.
Technical breakdown
Why vault-centric PAM leaves the access session unprotected
Vault-based PAM was designed to protect a secret at rest and to reduce password reuse. The weakness is structural: once a credential is released, the vault is no longer governing what happens in memory, on the endpoint, or inside the session. That leaves room for theft from memory, abuse by malware, insider misuse, and interception after checkout. In other words, the vault protects the store, not the act of using the privilege. Practical implication: security teams must distinguish credential storage controls from session-enforcement controls.
Practical implication: Separate secret protection from access enforcement so you do not treat vaulting as a complete privileged access control model.
Just-in-time elevation and inline policy enforcement
Real-time privileged access security shifts enforcement to the moment of access. Just-in-time elevation grants privilege only when the request matches policy, while inline controls can apply context, identity, and risk checks before or during the session. This reduces standing privilege and removes the need to hand out long-lived passwords for every privileged action. The model is closer to Zero Trust than to classic password brokerage because each request is evaluated on current conditions rather than assumed trust. Practical implication: design privileged access around ephemeral entitlement, not persistent account ownership.
Practical implication: Use just-in-time access and inline policy checks to reduce standing privilege and shorten the lifetime of elevated access.
How non-human identities change privileged access architecture
NHIs such as service accounts, scripts, automation tools, and AI agents create privileged access at machine speed and often at scale. Vault-first workflows struggle here because each credential becomes another object to store, rotate, approve, and audit, which increases operational friction and weakens consistency. A runtime access model can govern these identities through policy, context, and identity provider integration rather than through static secret checkout. The architectural shift is from secret distribution to access authorisation. Practical implication: extend privileged access governance to NHIs with the same enforcement layer used for human administrators.
Practical implication: Apply the same privileged access governance model to NHIs that you use for human administrators, but enforce it at runtime.
Threat narrative
Attacker objective: The attacker wants privileged session access that outlives the protection of the vault and enables control of high-value systems.
- Entry occurs when an attacker obtains a privileged credential through phishing, memory scraping, misconfigured storage, or abuse of an approval workflow.
- Escalation follows after the secret is checked out or otherwise released, because the vault no longer controls what the attacker does in-session.
- Impact occurs when the attacker uses that privileged access to reach admin tools, infrastructure, or sensitive data with little additional enforcement.
Breaches seen in the wild
- Cisco DevHub NHI breach — IntelBroker exploited exposed Cisco credentials, API tokens and keys in DevHub.
- MongoBleed breach — MongoBleed exposed secrets across 87K MongoDB servers.
Read our 52 NHI Breaches Analysis report for a comprehensive view of breaches impacting Non-Human Identities including AI Agents.
NHI Mgmt Group analysis
Vault-based PAM is a control for secret custody, not for privileged behaviour. The article’s central point is that a vaulted password can still be stolen, logged, reused, or abused after checkout, which means the control boundary stops too early. That makes the model unsuitable as the primary security layer for dynamic environments where access must be governed at the moment of use. Practitioners should treat vaults as one component of privileged access governance, not the governance model itself.
Standing credential exposure window: This is the failure mode the article exposes, and it is the clearest reason vault-centric PAM is losing authority. The exposure window begins when the password leaves the vault and ends only when the session is closed, which is exactly where classic vault controls have the least visibility. The implication is not simply that more controls are needed, but that the underlying assumption of safe credential handoff no longer holds.
Identity-centric privileged access is becoming the operating model for both human and non-human actors. Once privilege is enforced inline, the distinction between a human admin and an NHI executor matters less than the policy boundary around the session. That aligns with Zero Trust thinking and with OWASP NHI concerns about secret sprawl, over-privilege, and lifecycle drift. Practitioners should align privileged access design with runtime identity, not with static account possession.
Privileged access governance now has to absorb NHIs, not just administrators. The article correctly points out that service accounts, scripts, and automation tools account for much of modern privileged activity, which means legacy PAM assumptions were already too narrow. That gap is visible in programmes that can approve a human session but cannot express the same governance intent for a machine executor. The practical conclusion is that privileged access policy must be identity-agnostic at the control layer even when the actor type differs.
Vault-free PAM is really a shift from protecting secrets to governing execution. The most important market signal here is that the industry is moving away from secret-centric assurance toward live access verification. That change matters because it accelerates convergence between PAM, IGA, and NHI governance into a single runtime control problem. Practitioners should expect their access programme to be judged less by how well it stores credentials and more by how tightly it governs use.
From our research:
- 54% of organisations are dissatisfied with their current secrets management solution because not all secrets are secured, and 43% cite lack of central management, according to The 2024 State of Secrets Management Survey.
- 88% of security professionals are concerned about secrets sprawl, which shows how quickly secret-centric governance becomes operational debt when access scales across systems and teams.
- That is why teams should also examine the Ultimate Guide to NHIs for the broader governance model that moves beyond secret storage toward lifecycle and access control.
What this signals
Standing privilege is still the fault line. As more environments move toward real-time access enforcement, the programme risk shifts from where secrets are stored to whether any identity type still carries access longer than necessary. The practical signal for teams is to review whether approval flows, break-glass paths, and hybrid admin models are still creating avoidable exposure windows.
With 91% of former employee tokens remaining active after offboarding in our 2025 State of NHIs and Secrets in Cybersecurity research, lifecycle failure is not just a human problem. It shows why privileged access governance needs a unified offboarding and revocation model across humans, service accounts, and automated executors.
Vault-free PAM: the real change is not removing every vault, but removing the idea that secret custody is the primary security boundary. Teams that keep their controls centred on passwords will keep inheriting friction, while teams that centre policy on runtime identity can reduce both attack surface and operational drag.
For practitioners
- Redesign privileged access around session enforcement Map where your current PAM design stops at credential release and where you still need inline checks, session monitoring, and step-up controls after access begins.
- Inventory standing privileged credentials across humans and NHIs Identify administrator accounts, service accounts, scripts, and automation identities that still rely on check-out or long-lived passwords, then separate them by business criticality.
- Move break-glass and legacy access to exception-only handling Keep vaults for fallback scenarios, but remove them from the default operating path for routine privileged work so they do not define the whole control model.
- Align NHI governance with runtime policy Treat machine identities as privileged actors that need context-aware authorization, not just secret rotation, and link them to the same governance workflow as human admins.
Key takeaways
- Vault-centric PAM fails when credential custody is treated as the same thing as access control.
- The real risk is the exposure window after credential release, where session abuse and secret theft become possible.
- Practitioners should extend privileged access governance to runtime enforcement for both human admins and NHIs.
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 and NIST Zero Trust (SP 800-207) set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Non-Human Identity Top 10 | NHI-03 | Vault-centric credential handling maps to secret rotation and storage weaknesses. |
| NIST CSF 2.0 | PR.AC-4 | Privileges should be limited and enforced continuously, not only at storage time. |
| NIST Zero Trust (SP 800-207) | The article’s runtime enforcement model aligns with continuous verification. |
Move privileged access decisions to the session layer and re-evaluate trust continuously.
Key terms
- Privileged access security: Privileged access security is the discipline of controlling how high-risk access is granted, used, monitored, and revoked. It goes beyond storing passwords safely and focuses on the live session, the identity behind it, and the policy checks that prevent abuse.
- Vault-centric PAM: Vault-centric PAM is a legacy model that protects privileged credentials by storing them in a secure repository and checking them out when needed. It reduces password exposure, but it still assumes that handing out the credential is acceptable if the vault is controlled.
- Just-in-time elevation: Just-in-time elevation is a pattern where elevated access is granted only when needed and withdrawn as soon as the task is complete. For privileged and NHI use cases, it reduces standing privilege and limits how long any actor can operate with high-risk access.
- Standing credential exposure window: The standing credential exposure window is the period after a secret leaves controlled storage and before the access session ends. In NHI and privileged access programmes, this is where theft, reuse, and misuse become possible even if the vault itself remains secure.
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 responsible for identity security strategy or NHI governance in your organisation, it is worth exploring.
This post draws on content published by Silverfort: why PAM is moving beyond vault-based security. Read the original.
Published by the NHIMG editorial team on 2025-08-25.
NHI Mgmt Group — the independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org