Behavior-driven governance closes the access visibility gap in hybrid estates

At a glance

What this is: This is an analysis of behavior-driven governance, a model that links access activity to governance decisions so unused or risky access can be reduced.

Why it matters: It matters because NHI and IAM teams need governance that reflects actual usage, especially where hybrid systems, privilege creep, and dormant access expand attack paths.

By the numbers:

• A predicted 50% of critical enterprise applications will reside outside of centralized public cloud locations by 2027.
• 78% of surveyed Americans admit to password reuse, with 4% saying they use the same password across 11 accounts.
• Abuse of valid credentials in 2023 accounts for 44.7 percent of all data breaches.

👉 Read One Identity's analysis of behavior-driven governance for hybrid access

Context

Behavior-driven governance addresses a familiar IAM problem: governance decisions often lag behind actual access behavior. In hybrid environments, entitlements, login activity, and application usage can drift apart, leaving teams with outdated assumptions about who or what still needs access. For NHI governance, that same gap applies to service accounts, tokens, and privileged application access that remain active after their purpose fades.

The article frames this as a convergence problem between identity governance and access management. That framing is reasonable, but the deeper issue is operational: organizations need evidence from runtime behavior before they can make least-privilege decisions with confidence. For teams managing non-human identities, the lesson is that access review without usage context is usually too blunt to catch privilege creep early.

Key questions

Q: How should security teams reduce privilege creep in hybrid IAM environments?

A: Security teams should base access reduction on observed usage, not just role assignment or periodic certification. That means combining login data, application activity, and privileged access logs so dormant entitlements can be disabled, revoked, or sent for attestation. For non-human identities, the same approach helps remove stale machine access before it becomes an attack path.

Q: When does behavior-driven governance add more value than traditional access reviews?

A: It adds the most value when access changes faster than review cycles, especially in hybrid environments with many applications, distributed entitlements, and dormant accounts. Traditional reviews show what was granted. Behavior-driven governance shows what is actually used, which makes it better for identifying privilege creep and unused access that still carries risk.

Q: What is the difference between access management and identity governance?

A: Access management controls how access is granted and used at runtime, while identity governance decides whether that access should continue to exist. The two functions become much stronger when connected, because usage data can inform governance actions. Without that connection, teams often review stale entitlements without knowing whether they were ever used.

Q: How should teams handle unused non-human identities and dormant application access?

A: Teams should treat both as lifecycle risks, not administrative leftovers. Define inactivity thresholds, require ownership, and route unused accounts, application access, and privileged objects into disablement or attestation workflows. That approach reduces standing privilege and makes it harder for attackers to exploit credentials that remain valid long after their original purpose ended.

Technical breakdown

How behavior-driven governance links access usage to governance decisions

Behavior-driven governance connects access management signals, such as logins, event logs, and application usage, to identity governance workflows. Instead of treating entitlements as static records, the model uses behavior data to identify when access looks dormant, unnecessary, or inconsistent with the user or account's actual activity. That makes it more responsive than periodic review alone. In practice, the governance engine can recommend or automate revocation, conditional removal, or attestation based on thresholds. For NHI estates, the same pattern applies to application accounts and privileged objects that accumulate access long after they are needed.

Practical implication: Use runtime usage evidence to drive entitlement reviews, especially for accounts and applications that rarely or never authenticate.

Why least privilege needs behavior context in hybrid environments

Least privilege fails when entitlement decisions are made without enough context about real-world use. Hybrid estates complicate this because identity signals are split across on-premises systems, cloud platforms, SSO, and privileged access paths. A dormant account can still hold meaningful access, and a low-usage application can still sit on a critical path. Behavior-driven governance helps close that gap by tying access decisions to consumption frequency and event history. For NHI governance, that means the control objective is not just who has access, but whether that access is still justified by observed use.

Practical implication: Treat low-usage access as a review trigger, not a harmless artifact, and align it with privilege and business criticality.

What adaptive policies change about entitlement lifecycle control

Adaptive policies move entitlement governance from periodic cleanup to continuous policy enforcement. Threshold-based rules can define when an account, application, or privileged object becomes unused, then trigger disablement, deletion, or attestation workflows. That does not eliminate human judgment, but it reduces the number of stale permissions that reach manual review. For NHI programs, adaptive policy is especially relevant because service accounts and machine credentials often outlive their original use case. The architecture works best when lifecycle events, usage telemetry, and ownership data are connected in the same decision flow.

Practical implication: Define clear inactivity thresholds and route them into lifecycle workflows so dormant access is handled consistently.

Threat narrative

Attacker objective: The attacker aims to turn legitimate but stale access into a low-friction path for privilege abuse and lateral movement.

1. Entry occurs through valid credentials that remain active after the underlying need has disappeared, including reused passwords and dormant accounts.
2. Escalation follows when unused entitlements still grant access to sensitive systems or privileged objects that have not been removed.
3. Impact occurs when attackers use that retained access to move laterally, avoid detection, and exploit gaps between governance and runtime behavior.

Breaches seen in the wild

• Salesloft OAuth token breach — hackers stole OAuth tokens to access Salesforce data via Salesloft.
• Internet Archive breach — unsecured GitLab authentication tokens exposed 31M Internet Archive accounts.

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

NHI Mgmt Group analysis

Behavior-driven governance is a response to the failure of static access reviews, not a replacement for them. Periodic certifications are too slow when access patterns change faster than review cycles. The practical shift is from entitlement lists to evidence of use, which is where governance becomes materially more accurate for both human and non-human identities.

Hybrid estates create an observability gap that identity teams can no longer ignore. When access signals are split across SSO, endpoint, application logs, and privileged systems, conventional governance tools lose the behavioral context needed to make precise decisions. That gap is now a governance risk, not just an integration inconvenience, and teams should close it before it becomes privilege creep at scale.

Ephemeral usage evidence creates a cleaner basis for least privilege than role labels alone. Roles describe intent, but usage shows reality. For NHI programs, especially those managing service accounts and application access, this is the difference between theoretical control and measurable reduction in standing privilege.

Unused access is an identity lifecycle problem disguised as a compliance problem. Dormant entitlements, stale application access, and unused privileged objects all point to the same flaw: lifecycle controls are not keeping pace with operational change. Teams should treat removal workflows as part of security architecture, not a cleanup task.

Behavior-driven governance sharpened by the runtime observability gap becomes a practical control pattern for modern IAM. The field should expect more emphasis on telemetry-backed policy decisions because static governance cannot keep up with distributed infrastructure, delegated access, and machine credentials. Practitioners should plan for controls that learn from usage, not just record it.

From our research:

• Systems with least-privileged AI access had a 17% incident rate vs 76% for over-privileged systems, according to the 2026 Infrastructure Identity Survey.
• 69% of security leaders agree identity management must fundamentally shift to address agentic AI systems, according to the same survey.
• For the lifecycle side of the problem, the NHI Lifecycle Management Guide is the next step when you need to turn usage evidence into provisioning, rotation, and offboarding rules.

What this signals

With 67% of organisations still relying heavily on static credentials despite the risks they pose to agentic AI deployments, according to the 2026 Infrastructure Identity Survey, teams should expect pressure to move from entitlement review to credential lifecycle control. The practical signal is that standing access is becoming harder to justify across both human and machine identities.

Runtime observability gap: the operational blind spot between what access was granted and what access was actually used. For reader programmes, that means access governance, PAM, and NHI controls need shared telemetry if they are going to keep up with hybrid estates and dormant privilege.

Enterprises that keep treating unused access as an audit cleanup issue will keep missing the security value of removal workflows. Teams should prepare to integrate lifecycle controls with attestation, telemetry, and ownership so governance decisions happen closer to the moment risk appears.

For practitioners

• Connect governance to runtime usage signals Feed login events, application activity, and privileged access logs into access review workflows so entitlement decisions reflect actual consumption rather than inherited assignment.
• Set inactivity thresholds by access criticality Use different unused-access thresholds for standard accounts, application access, and privileged objects so high-risk resources are reviewed faster than low-risk ones.
• Automate removal with an exception path Trigger disablement or revocation automatically when usage falls below policy, but preserve an attestation workflow for business exceptions and owner review.
• Tie NHI lifecycle controls to usage evidence Apply the same consumption-based logic to service accounts and machine credentials that you use for user entitlements, especially where access outlives the original workload.

Key takeaways

• Behavior-driven governance matters because static entitlement reviews cannot keep pace with changing access use across hybrid environments.
• Unused access is a material security issue, especially where dormant application rights and privileged objects remain active after business need fades.
• Practitioners should connect runtime usage data to lifecycle workflows so least privilege becomes an operational control rather than a policy statement.

Key terms

• Behavior-Driven Governance: A governance model that uses access activity to inform entitlement decisions. It combines identity governance and access management so organizations can revoke, retain, or review access based on actual usage rather than static assignment alone.
• Privilege Creep: The gradual accumulation of access rights that are no longer needed for a job, workload, or application. In NHI environments, it often appears when service accounts, tokens, or application permissions persist after the original purpose has changed.
• Runtime Observability Gap: The disconnect between what identity systems think was granted and what access systems show was actually used. This gap weakens governance because teams cannot confidently decide whether access is still necessary, especially in hybrid and distributed environments.

Deepen your knowledge

Behavior-driven governance and least privilege across hybrid environments are core topics in our NHI Foundation Level course, the industry's only accredited NHI security programme. If you are building a lifecycle-led access programme from a similar starting point, it is worth exploring.

This post draws on content published by One Identity: There’s an unfortunate truth about applications and access in the enterprise. Read the original.