Active Directory privileged access is still the keys to the kingdom

At a glance

What this is: This is an analysis of why Active Directory privileged access remains the highest-value identity target and why delegated permissions often matter more than obvious admin groups.

Why it matters: It matters because IAM, PAM, IGA, and NHI teams cannot secure what they only classify by group membership, especially when delegated access and service accounts can carry equivalent power.

By the numbers:

• At 85% of all organizations worldwide, the vast majority of all powerful privileged access resides in Active Directory.

👉 Read Paramount Defenses' analysis of privileged access in Active Directory

Context

Active Directory privileged access is the set of permissions that can change, reset, replicate, or delegate control across an enterprise domain. The core governance failure is not that privileged accounts exist, but that many organisations still define privilege too narrowly and miss delegated access hidden in ACLs, OUs, and effective permissions.

That matters for IAM, PAM, and identity lifecycle programmes because the real control boundary is often not a named admin group. In practice, serviceability accounts, delegated administrators, and custom permissions can create Domain Admin equivalent power without looking like it in a standard review.

Key questions

Q: How should teams identify privileged access in Active Directory beyond Domain Admins?

A: Teams should assess effective permissions on high-value directory objects, not just membership in default admin groups. Any identity that can reset privileged passwords, modify ACLs, alter group membership, manage trusts, or change GPOs may have Domain Admin equivalent power and should be reviewed as privileged.

Q: Why do delegated administrators create hidden privilege risk in Active Directory?

A: Delegated administrators can control users, groups, computers, or OUs without appearing in obvious admin groups. That scope can let them reset passwords, change memberships, or alter permissions across many assets, which means delegation can create the same blast radius as direct administrative membership.

Q: What do security teams get wrong about privileged access reviews in Active Directory?

A: They often mistake visible group membership for complete privilege visibility. In Active Directory, the ability to perform specific high-impact tasks is what matters, so a review that ignores delegated rights, ownership, and ACL inheritance will miss accounts that can still take over the domain.

Q: Who should be included when reviewing Domain Admin equivalent access?

A: The review should include human admins, delegated administrators, and service accounts that can change privileged objects or policies. If an identity can modify users, groups, OUs, trusts, or replication-related settings, it belongs in the privileged access population even if it is not in a default admin group.

Technical breakdown

Why effective permissions matter more than group membership

Active Directory objects are governed by ACLs, and the net result of those permissions determines what an identity can actually do. Group membership is only one signal. Effective permissions analysis reveals whether an ordinary account can reset passwords, change group membership, modify ACLs, or replicate secrets. That is why a narrow review of default admin groups leaves a large part of the attack surface invisible.

Practical implication: build access review processes around effective permissions, not just privileged group membership.

Delegated admins can carry Domain Admin equivalent power

Delegation in Active Directory is meant to distribute operational work, but it also expands the privilege footprint across users, computers, groups, and OUs. An account that manages a high-value OU or security group can often control the identities inside it, which means delegated access can produce the same blast radius as a traditional administrator. The key issue is scope, not job title.

Practical implication: map every delegated admin path to the objects it can modify, then treat high-scope delegation as privileged access.

Why Domain Admin is only the tip of the iceberg

Domain Admins are easy to enumerate, but many equally powerful paths sit outside that group. Anyone who can change Domain Admin membership, alter the domain root ACL, or run Domain Admin equivalent tasks can exercise similar control. This creates a hidden privilege layer inside Active Directory that standard group-centric inventories do not expose.

Practical implication: identify Domain Admin equivalent tasks and test who can perform them through effective permissions analysis.

Threat narrative

Attacker objective: The attacker wants domain-level control that lets them access credentials, alter security policy, and expand compromise across the enterprise.

1. Entry begins with access to an ordinary domain account, delegated admin path, or over-permissioned service account inside Active Directory.
2. Escalation occurs when the actor uses effective permissions to reset privileged passwords, change group membership, modify ACLs, or replicate directory secrets.
3. Impact follows when domain-wide administrative control is used to access, tamper with, or disable security controls across the organisation.

Breaches seen in the wild

• Cisco DevHub NHI breach — IntelBroker exploited exposed Cisco credentials, API tokens and keys in DevHub.
• Cisco Active Directory credentials breach — Kraken ransomware group leaked Cisco Active Directory credentials.

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

NHI Mgmt Group analysis

Effective permissions are the real privilege boundary in Active Directory. Group membership alone does not describe what an identity can actually do when ACLs, delegated rights, and ownership changes are in play. Organisations that continue to review only named admin groups are measuring the wrong layer of authority. Practitioners should treat permission analysis as the control surface, not the inventory output.

Domain Admin equivalent access is a governance concept, not a role name. The article is right to widen the lens beyond Domain Admins, because password resets, ACL modification, trust management, and GPO control can all create equivalent blast radius. That means privilege assessment must be task-based as well as group-based. Practitioners should classify high-impact capabilities as privileged even when they sit outside standard admin groups.

Delegated privilege debt: administrative delegation that outlives its original business purpose accumulates hidden risk inside Active Directory. Delegated admin rights are often granted to make operations work, then left in place after the need has changed. The result is not just excess access, but excess authority that is hard to see in routine reviews. Practitioners should inventory delegation paths with the same seriousness applied to direct admin membership.

Service account governance belongs in the same conversation as human admin governance. The article focuses on privileged users, but many of the same failure modes also apply to machine and service identities that can touch directory objects, group membership, or security policies. Identity security programmes that separate human IAM from NHI governance miss the shared control problem. Practitioners should unify privilege review across humans, service accounts, and delegated administrators.

From our research:

• 85% of organisations lack full visibility into third-party vendors connected via OAuth apps, according to The State of Non-Human Identity Security.
• Only 1.5 out of 10 organisations are highly confident in their ability to secure NHIs, compared to nearly 1 in 4 for securing human identities.
• For the deeper governance pattern, review Ultimate Guide to NHIs for lifecycle, rotation, and offboarding controls that complement AD privilege review.

What this signals

Privilege review has to move from inventory to capability analysis. If teams only ask who belongs to Domain Admins, they will continue to miss delegated paths that can reset passwords, rewrite ACLs, or change trust boundaries. The practical shift is to review what an identity can do, then decide whether the programme can actually absorb that blast radius.

The next maturity step is to treat human admins and non-human identities as one privilege universe where scope, not label, determines control. That means PAM, IGA, and directory security teams need a common view of effective permissions, delegated authority, and stale access that no longer matches business need.

A useful governance concept here is effective-permission blind spot: the difference between visible membership and actual control authority. If that blind spot persists, access reviews will stay performative. Practitioners should pair directory entitlements with directory-object capabilities and align the result with OWASP Non-Human Identity Top 10 and NIST SP 800-63 Digital Identity Guidelines only where federation and authentication are actually in scope.

For practitioners

• Inventory effective permissions on high-value AD objects Assess who can modify the domain root, Domain Admin membership, GPO links, trust relationships, and privileged OU ownership. Use effective permissions rather than directory group lists, because delegated rights often reveal hidden equivalent access.
• Map Domain Admin equivalent tasks to real identities Create a control matrix that ties each high-impact task to the users, delegated admins, and service accounts that can perform it. Include password resets, ACL changes, replication rights, and OU administration.
• Review delegated administration as privileged access Treat delegated rights over users, groups, computers, and OUs as privileged access during PAM and IGA review cycles. Remove stale delegation paths and require explicit business ownership for every remaining administrative scope.
• Correlate human and machine identities in one review cycle Include service accounts and other non-human identities that can manage directory objects in the same privilege review as human admins. Split reviews by identity type only for reporting, not for control enforcement.

Key takeaways

• Active Directory privilege is broader than obvious admin groups, and delegated access can create the same blast radius as direct membership.
• The article’s strongest governance lesson is that effective permissions, not directory labels, determine who can really control the domain.
• Identity teams should review human admins, delegated admins, and service accounts together when assessing privileged access in AD.

Key terms

• Effective Permissions: Effective permissions are the real access an identity has after group membership, ACL inheritance, ownership, and delegation are all evaluated together. In Active Directory, they matter more than directory labels because they show what an account can actually change, reset, or control in practice.
• Domain Admin Equivalent Access: Domain Admin equivalent access is any set of permissions that can produce the same practical blast radius as a Domain Admin account. That includes rights to reset privileged passwords, modify security groups, alter trust relationships, manage GPOs, or change ACLs on high-value objects.
• Delegated Administration: Delegated administration is the assignment of limited operational rights to manage users, groups, computers, or organisational units. It is often necessary for day-to-day IT work, but it becomes a privileged access issue when the delegated scope can be used to alter identity controls or expand authority.
• Privilege Blast Radius: Privilege blast radius is the amount of damage an identity can cause if it is misused or compromised. In directory environments, a small number of rights can expose many accounts, policies, and systems, which is why scope and object reach matter as much as title or membership.

What's in the full article

Paramount Defenses' full article covers the operational detail this post intentionally leaves for the source:

• The full breakdown of Domain Admin equivalent tasks and how they map to real access paths in Active Directory
• Examples of delegated permissions that can effectively control users, groups, computers, and OUs
• The article's step-by-step logic for assessing effective permissions across privileged objects
• Additional examples of default privileged groups and administrative delegation scenarios

👉 Paramount Defenses' full article expands the AD privilege hierarchy and effective-permissions examples

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.