Keyless privileged access is becoming the safer PAM model

At a glance

What this is: This is an independent analysis of why static privileged credentials remain the central failure point in modern PAM, and why keyless, short-lived access changes the governance model.

Why it matters: It matters because IAM, PAM, and NHI teams all face the same structural problem: persistent credentials outlive the access they were meant to grant, creating audit gaps and escalation risk across human, workload, and administrative paths.

By the numbers:

• 91% of former employee tokens remain active after offboarding, leaving organisations vulnerable to potential security breaches.
• 44% of NHI tokens are exposed in the wild, being sent or stored over platforms like Teams, Jira tickets, Confluence pages, and code commits.

👉 Read SSH Communications Security's perspective on keyless privileged access and modern PAM

Context

Passwords and static keys create a privileged access model built on persistence, while modern infrastructure now expects access to be temporary, contextual, and easy to revoke. That mismatch is the core governance problem behind credential sprawl, unclear ownership, and access paths that are difficult to remove once they spread across cloud, CI/CD, containers, and automation.

For IAM and PAM teams, the issue is not only authentication hygiene. It is the operational burden of maintaining credentials that should not remain active, especially when Zero Standing Privilege and zero trust controls are supposed to reduce long-lived access rather than preserve it. The NHI Lifecycle Management Guide is useful here because the same lifecycle logic applies to passwords, keys, tokens, and machine access.

The article's primary claim is that privileged access becomes easier to control only when organizations stop treating permanent credentials as the default. That is a familiar failure mode in many programmes, but it becomes more visible as access moves across more systems and more non-human actors.

Key questions

Q: How should security teams reduce standing privilege in privileged access workflows?

A: Security teams should move from reusable credentials to policy-based, short-lived sessions that expire when the task ends. The goal is to eliminate the need for passwords or SSH keys to persist between uses. That approach reduces blast radius, improves auditability, and makes privileged access easier to govern across cloud, production, and automation environments.

Q: Why do static SSH keys and passwords remain a risk even with rotation?

A: Rotation helps only if the credential is still tightly controlled and clearly owned. In practice, static credentials are often copied into scripts, reused by multiple systems, or left active longer than intended, so rotation changes the date on exposure rather than removing exposure. The risk is structural, not just procedural.

Q: What breaks when privileged credentials are shared across multiple systems?

A: Shared privileged credentials break ownership, revocation, and accountability at the same time. If one secret grants access to several systems, a single exposure can create a broad compromise path, and it becomes difficult to know which business function actually depends on it. That is how credential sprawl turns into uncontrolled blast radius.

Q: How should teams decide when to retire long-lived privileged access?

A: Teams should retire long-lived privileged access when the task can be completed through ephemeral sessions, scoped authorisation, and session logging instead. If the access is only needed briefly, keeping a permanent credential alive adds risk without adding value. The decision should be driven by task duration, ownership clarity, and revocation speed.

Technical breakdown

Why static privileged credentials keep failing

Static credentials fail because they are designed to survive longer than the access need itself. A password or SSH key can be copied, reused, cached in scripts, or left active after the original use case ends, which makes ownership and revocation difficult. In distributed environments, the same credential often appears across cloud resources, production hosts, CI/CD systems, and automation accounts. That creates an access model where the control plane is weaker than the operational reality. Once the credential escapes its original boundary, the organisation is managing exposure rather than access.

Practical implication: remove persistent privileged credentials from the access path wherever a short-lived alternative is available.

How keyless access supports Zero Standing Privilege

Keyless access changes the control point from stored secrets to policy evaluation at request time. Instead of issuing a reusable secret, the PAM layer authorises a session based on identity, context, and target, then expires that access when the task is complete. That aligns with Zero Standing Privilege because the privilege does not remain present between tasks. The model also improves auditability, since the session can be recorded and tied to a specific request rather than to a credential that may have been shared or duplicated elsewhere.

Practical implication: treat ephemeral access sessions as the primary privileged control, and reserve standing credentials only for exceptions.

Why credential rotation is not enough on its own

Rotation reduces exposure windows, but it still assumes the organisation can manage a credential safely until the next change. That assumption breaks down when credentials are already scattered across systems, reused by multiple services, or embedded in scripts. Rotation can also become an operational treadmill if the underlying access design still depends on secrets to exist. Modern PAM should therefore reduce the number of privileged credentials in circulation, not just change them more often. The governance goal is less secret maintenance and less blast radius, not a faster reset cycle.

Practical implication: pair rotation with credential elimination so teams are shrinking the secret estate, not merely refreshing it.

Breaches seen in the wild

• Shai Hulud npm malware campaign — Shai Hulud campaign: npm malware exposed secrets on GitHub.
• Reviewdog GitHub Action supply chain attack — reviewdog/action-setup GitHub Action supply chain attack exposed secrets.

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

NHI Mgmt Group analysis

Persistent privileged credentials are a governance debt, not a protection layer. Passwords and static SSH keys were built for a world where access changed slowly and ownership was easier to trace. That assumption no longer holds in cloud, container, and automation-heavy environments, where access is often temporary and distributed across many systems. The result is not just risk, but accumulated governance debt that shows up as forgotten keys, shared secrets, and unclear accountability.

Zero Standing Privilege is the correct control objective for privileged access. If access is only needed for minutes, keeping a secret alive between sessions is a design flaw. PAM programmes that focus on secret storage without reducing standing access preserve the very problem they are meant to solve. The practical implication is that privileged governance must shift from secret custody to access suppression.

Keyless privileged access sharpens the boundary between identity and credential reuse. When access is granted through identity and policy rather than by distributing reusable keys, the organisation reduces the conditions under which secrets spread uncontrollably. That aligns with OWASP-NHI and NIST-CSF expectations around least privilege and access governance. The implication is that teams should stop measuring success by how securely they store secrets and start measuring how many secrets they can remove from circulation.

Credential sprawl: The same privileged identity used across multiple systems creates broad compromise potential when any one access path is exposed. This is a structural control gap, not a tooling problem, because the credential itself becomes the shared attack surface. Practitioners should treat every duplicated or long-lived credential as a sign that the access model is oversized for the task.

Auditability improves only when the credential disappears from the workflow. Session recording and policy enforcement matter, but they do not fully solve the problem if the underlying secret can still be copied and reused outside the approved path. That is why lifecycle governance must extend to privileged credentials themselves, not just to the sessions they enable. The implication is simple: if the credential remains portable, the control remains partial.

From our research:

• 91% of former employee tokens remain active after offboarding, leaving organisations vulnerable to potential security breaches, according to The 2025 State of NHIs and Secrets in Cybersecurity.
• 62% of all secrets are duplicated and stored in multiple locations, causing unnecessary redundancy and increasing the risk of accidental exposure.
• The wider pattern is lifecycle failure, not isolated mishandling, which is why the NHI Lifecycle Management Guide remains the right next resource for teams redesigning privileged access.

What this signals

Credential sprawl is becoming a lifecycle problem as much as a security problem. When passwords and static keys survive longer than the access they support, the programme starts spending more effort on clean-up than on governance. Teams should expect more pressure to prove ownership, expiry, and revocation across both human-admin and non-human access paths.

The shift to keyless privileged access also changes how organisations should think about PAM metrics. Counting stored secrets is less useful than measuring how many privileged workflows still depend on reusable credentials, and how quickly those dependencies can be retired.

For teams aligning to Zero Standing Privilege, the immediate planning question is whether the current access model can support task-scoped sessions without forcing new secret sprawl. The Top 10 NHI Issues is useful for framing that broader control gap, especially where machine and human privilege patterns overlap.

For practitioners

• Inventory and classify standing privileged credentials Identify passwords, SSH keys, API keys, and certificates that grant elevated access across cloud, production, CI/CD, and automation environments. Group them by owner, system, and expiry exposure so you can remove the credentials with the widest blast radius first.
• Replace reusable secrets with short-lived access paths Move privileged workflows to policy-based, time-bound sessions that grant access only for the target, duration, and identity context required. Use the NHI Lifecycle Management Guide to align provisioning, use, and offboarding logic across both human and non-human administrative access.
• Tie revocation to lifecycle events, not incident response Build offboarding and role-change triggers that remove privileged access when the task ends, not after a compromise is detected. This is especially important for shared admin accounts and scripts where the access path can outlive the business need.
• Reduce secret distribution across operational systems Prohibit copying privileged credentials into tickets, code repositories, deployment scripts, and ad hoc messaging channels. Treat every duplicated secret as an avoidable increase in attack surface and audit complexity.

Key takeaways

• Static privileged credentials remain risky because they outlive the access they were meant to grant, creating avoidable exposure and ownership problems.
• Evidence from NHIMG research shows the lifecycle problem is persistent, with 91% of former employee tokens still active after offboarding and 62% of secrets duplicated across multiple locations.
• Practitioners should treat keyless, short-lived access as the control target and remove reusable secrets from privileged workflows wherever possible.

Key terms

• Standing Privilege: Standing privilege is access that remains available outside the moment it is needed. In practice, it creates a durable attack surface because the identity can act without a fresh policy decision, making revocation slower, ownership blurrier, and abuse easier to hide.
• Keyless Access: Keyless access grants privileged access without distributing a reusable secret such as a password or SSH key. The control depends on identity, policy, and context at request time, which reduces secret sprawl and makes access easier to confine to a single session or task.
• Credential Sprawl: Credential sprawl is the uncontrolled spread of secrets, keys, and tokens across systems, scripts, teams, and channels. It weakens accountability because the same access capability can exist in many places, often without a clear owner or reliable offboarding path.

Deepen your knowledge

Keyless privileged access and Zero Standing Privilege are core topics in our NHI Foundation Level course, the industry's only accredited NHI security programme. If you are redesigning privileged workflows away from reusable secrets, it is worth exploring.

This post draws on content published by SSH Communications Security: keyless privileged access and modern PAM. Read the original.