Hybrid PAM needs one control plane for human and NHI access

At a glance

What this is: This is an analysis of hybrid PAM design, and its key finding is that fragmented privilege models across on-premises and cloud environments create avoidable security gaps.

Why it matters: It matters because IAM, PAM, and NHI teams need one governance layer for human accounts, service identities, and cloud privileges or they will keep inheriting inconsistent policy and audit blind spots.

👉 Read Securden's analysis of hybrid PAM for human and NHI access

Context

Hybrid PAM is the control problem created when privileged access is split across on-premises infrastructure, cloud consoles, directories, and automation accounts that do not share one governance model. The article argues that this fragmentation leaves gaps in policy enforcement, monitoring, and revocation, especially where human and non-human identities share the same estate.

For identity teams, the central issue is not whether a vault exists but whether one control plane governs credential storage, just-in-time elevation, session oversight, and offboarding across the whole hybrid stack. That is the difference between a PAM programme that merely stores secrets and one that can actually constrain privilege across Active Directory, Entra ID, cloud platforms, and workloads.

Key questions

Q: What breaks when hybrid PAM is split across separate cloud and on-premises control models?

A: Policy drift, inconsistent approvals, and uneven revocation are the usual failures. Once access is governed differently by platform, teams lose a single view of who can do what, and privileged accounts become harder to review, monitor, and offboard consistently across the estate.

Q: Why do standing administrator rights increase risk in cloud and remote access environments?

A: Standing rights expand the window for abuse because excess privilege remains available long after the original need passes. In cloud and remote access settings, that increases the impact of stolen credentials, pass-the-hash attacks, and compromised endpoints. Least privilege with continuous verification reduces lateral movement by forcing access to be earned, scoped, and time bound.

Q: When should organisations extend PAM controls to non-human identities?

A: Organisations should extend PAM as soon as service accounts, API keys, certificates, or automation identities can perform privileged actions. If those identities can modify infrastructure, access sensitive data, or bypass approval workflows, they need the same lifecycle discipline as human admins. Waiting until an incident creates avoidable risk.

Q: How do organisations know if PAM is actually working?

A: PAM is working when elevated access is temporary, sessions are observable, and revoked rights do not reappear outside approved workflows. If admin activity remains hard to attribute, if credentials persist after use, or if privileged accounts are missing from inventory, the control is only partial.

Technical breakdown

Why fragmented privilege models create PAM control gaps

Hybrid environments usually inherit different privilege schemes from each platform. Active Directory group membership, Azure role assignment, Linux sudo, cloud IAM policies, and service account permissions all describe access differently, so organisations often end up enforcing policy in silos. The result is inconsistent approval paths, uneven logging, and revocation gaps when accounts move between systems. A unified PAM layer works by abstracting those underlying models into one policy plane for vaulting, elevation, and audit. That does not remove platform-specific controls, but it does stop them from drifting apart.

Practical implication: map every privileged path to a single governance model before expanding PAM coverage.

How credential vaulting, JIT elevation, and session monitoring fit together

A hybrid PAM control plane typically combines three mechanics. First, a credential vault stores passwords, secrets, and keys in one managed location so they are not copied into scripts, tickets, or shared inboxes. Second, just-in-time elevation grants access only for a bounded task window and then removes it. Third, session monitoring records what happened during use so the audit trail is tied to actual activity rather than only a request record. These controls are complementary. Vaulting protects the credential, JIT limits exposure time, and session monitoring covers use after approval.

Practical implication: treat vaulting, JIT, and session recording as one chain of controls, not separate projects.

What changes when PAM spans human and non-human identities

The article goes beyond traditional admin access and includes service accounts, automation credentials, hard-coded secrets, vendor access, and AI agent security. That matters because non-human identities do not behave like employees, but they still accumulate privilege, often with less visibility and weaker lifecycle discipline. When the same platform governs both human and non-human access, teams can apply the same approval, rotation, and audit logic to every privileged actor. The architectural win is consistency, but the governance burden remains: each identity type still needs its own ownership, scope, and offboarding rules.

Practical implication: extend PAM design to NHI inventories, not just human administrator accounts.

Threat narrative

Attacker objective: The attacker aims to turn fragmented privilege governance into durable access across the hybrid estate.

1. Entry occurs when fragmented privilege models leave standing administrative rights, unmanaged service accounts, or hard-coded secrets outside one governance path.
2. Escalation follows when those credentials or roles are reused across on-premises and cloud systems without unified revocation, monitoring, or approval controls.
3. Impact is broader lateral movement and compliance exposure because attackers or insiders can operate through privileged paths that the organisation cannot consistently see or constrain.

Breaches seen in the wild

• Cisco DevHub NHI breach — IntelBroker exploited exposed Cisco credentials, API tokens and keys in DevHub.
• Azure Key Vault privilege escalation exposure — Azure Key Vault Contributor role misconfiguration enabled privilege escalation.

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

NHI Mgmt Group analysis

Hybrid PAM fails when privilege is governed per platform instead of per actor. The article describes the exact failure mode many programmes still tolerate: different rules for cloud roles, directory groups, local admin rights, and service accounts. That creates policy drift, inconsistent revocation, and audit evidence that does not line up across the estate. The practitioner conclusion is simple: one control plane must govern the actor, not the platform.

Standing privilege is the wrong default for both humans and NHIs in hybrid estates. Just-in-time elevation and time-bound access are not cosmetic features here, they are the controls that shrink the attack window when privilege is shared across on-premises and cloud systems. Without them, every unmanaged account becomes a persistent access path that survives organisational change, platform migration, and staff turnover. The conclusion is that access duration must be treated as a core governance variable.

Credential vaulting only works when rotation, sharing, and session use are governed together. The article’s emphasis on vaulting, automated rotation, and session monitoring reflects an operational truth: storing secrets securely does not matter if they are reused, copied, or left active after approval. For NHI governance, the real issue is not possession of the secret but the persistence of the entitlement behind it. The conclusion is that secret custody and privilege custody have to be managed as one control domain.

Hybrid PAM is becoming the convergence layer for IAM, PAM, and NHI governance. The inclusion of service accounts, vendor access, CIEM, and AI agent security in one platform description shows where the market is moving. The boundary between human admin control and machine identity control is getting thinner, so programmes that keep them separate will carry duplicate policy, duplicate tooling, and duplicate blind spots. The conclusion is that identity teams should plan for converged privilege governance rather than parallel stacks.

Zero trust is only meaningful in hybrid PAM when explicit verification is applied at the point of use. The article’s architecture aligns with an assume-breach stance, but the operational value comes from verifying who is asking, what they need, and whether the session is bounded and recorded. That is the practical bridge between policy and enforcement in mixed estates. The conclusion is that zero trust for privilege is a runtime discipline, not a slogan.

From our research:

• 88.5% of organisations acknowledge that their non-human IAM practices lag behind or are merely on par with their human identity and access management efforts, according to The 2024 Non-Human Identity Security Report.
• Only 19.6% of security professionals express strong confidence in their organisation's ability to securely manage non-human workload identities.
• Use Ultimate Guide to NHIs to align hybrid PAM scope with lifecycle governance, rotation, and offboarding.

What this signals

Hybrid privilege governance is converging on the same problem that NHI teams have already seen elsewhere: ownership is not the same as control. Once service accounts, vendor access, and AI agent permissions sit beside human admin rights, the programme has to answer who owns the entitlement, who approves it, and who can revoke it. That makes privilege governance a lifecycle problem, not just a vaulting problem.

With 88.5% of organisations saying their non-human IAM lags behind human IAM, the operational gap is now visible enough to affect hybrid PAM design. The implication for practitioners is that a single control plane is only useful if it also absorbs the messy parts: ownership, rotation, access review, and offboarding. Otherwise the platform looks unified while the governance model remains fragmented.

For practitioners

• Define one privileged access control plane Inventory every privileged actor across Active Directory, cloud roles, local admin accounts, service identities, and vendor access, then map them to one policy model for approval, elevation, and audit. The goal is to stop running separate privilege rules for each platform.
• Remove standing privilege from high-risk paths Replace persistent administrative rights with just-in-time elevation for Tier 0 and other sensitive paths, and require automatic revocation when the task window closes. This matters most where the same privilege can reach both on-premises and cloud systems.
• Bring non-human identities into PAM scope Add service accounts, automation credentials, hard-coded secrets, and AI agent access paths to the same inventory, ownership, and review process used for human admins. If a non-human actor can reach a production system, it needs lifecycle governance.
• Tie privileged sessions to audit evidence Use session recording, live monitoring, and ticket linkage so privileged activity can be reviewed against the request that justified it. That gives the SOC and audit teams one trace from approval to action.

Key takeaways

• Hybrid PAM breaks down when privilege is split across platforms that enforce different rules for the same actor.
• The strongest control pattern in this article is the combination of vaulting, just-in-time elevation, and session monitoring across both human and non-human access paths.
• Teams that want lower risk in hybrid estates need one privilege governance model that extends to service accounts, cloud roles, and AI agent access.

Key terms

• PAM — Privileged Access Management: Solutions that control, monitor, and audit privileged access for both human and non-human identities. Traditional PAM tools are being extended to cover machine identities, service accounts, and agentic AI workloads.
• Just-in-Time Elevation: A temporary access pattern that grants a user or system elevated permissions for a limited period. It reduces exposure compared with always-on privilege, but it does not necessarily remove the underlying role or account from the environment, so governance must still address the residual entitlement path.
• Standing Privilege: Standing privilege is access that remains active even when no immediate task requires it. For NHI programmes, it is a common failure mode because long-lived credentials and persistent roles create unnecessary exposure. Reducing standing privilege usually means tighter expiry, on-demand access, and clearer review of who or what still needs access.
• Non-Human Identity (NHI): A digital identity assigned to a non-human entity such as a software application, service account, API key, bot, machine, or AI agent that enables it to authenticate and interact with systems without direct human involvement. NHIs now outnumber human identities in most enterprises by 25 to 50 times.

What's in the full article

Securden's full analysis covers the operational detail this post intentionally leaves for the source:

• Step-by-step hybrid PAM implementation sequence from strategy to rollout across on-premises and cloud estates
• Specific discovery and classification workflow for privileged accounts, including Tier 0, Tier 1, and Tier 2 grouping
• Detailed examples of JIT access, session monitoring, and ticket-based approval integration in a live programme
• Platform coverage notes for Active Directory, Entra ID, AWS, Google Cloud, Linux, databases, and vendor access

👉 The full Securden article covers implementation detail, cross-platform controls, and deployment considerations.

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 responsible for identity security strategy or NHI governance in your organisation, it is worth exploring.