Non-human identity security now requires lifecycle governance

At a glance

What this is: This is an analysis of why non-human identity security now depends on lifecycle governance, with the key finding that human-centric IAM and IGA controls do not adequately cover service accounts, API keys, tokens, and certificates.

Why it matters: It matters because identity teams have to govern machine identities with the same discipline they apply to human access, or risk unmanaged privileges, stale secrets, and broken ownership boundaries.

Context

Non-human identity security is the governance problem that appears when machine credentials outgrow human-centric IAM. The article argues that service accounts, API keys, tokens, and certificates are often created and used outside the ownership, visibility, and recertification model that IAM teams built for people.

The control gap is not abstract. When an identity has no clear owner or lifecycle record, rotating or removing it can disrupt business processes, while leaving it untouched preserves risk. That is why NHI discovery, ownership, least privilege, and lifecycle integration become the practical control plane for non-human identity programmes.

Key questions

Q: What breaks when non-human identities are governed like human users?

A: Lifecycle triggers, ownership, and review processes stop working because machine identities do not generate joiner, mover, or leaver events. Access can persist after the original purpose disappears, leaving valid credentials outside normal certification paths. That creates a blind spot where privileged access remains active even though nobody can clearly explain why it still exists.

Q: What problem does ownership attribution solve for service accounts and API keys?

A: It closes the gap between exposure detection and accountable remediation. Many organisations can find the secret, but not the human who introduced it, maintains it, or can safely replace it. Ownership attribution gives security teams a practical way to assign action without relying on informal knowledge that disappears during staff changes.

Q: How do security teams know whether NHI governance is actually working?

A: Look for lifecycle completion, not just more inventory. Useful signals include the percentage of identities with owners, the share that are reviewed on schedule, the number of dormant credentials removed, and whether over-privileged access is shrinking in the highest-risk domains.

Q: When should organisations prioritise NHI lifecycle governance over more access tooling?

A: They should prioritise lifecycle governance when identities are proliferating faster than teams can account for them. If ownership, expiry, and offboarding are unclear, more tooling usually adds visibility without fixing the underlying control problem. Governance first makes later automation meaningful.

Technical breakdown

Why human-centric IAM breaks for NHIs

Human IAM assumes an accountable person, an interactive login flow, and a governance loop built around joiner-mover-leaver processing. NHIs do not behave that way. Service accounts, tokens, API keys, and certificates are often created for applications, pipelines, or integrations, then reused for long periods without the ownership context needed for recertification or offboarding. That creates a gap between possession of a credential and the governance signal that tells the organisation what it is for, who depends on it, and when it can be changed safely.

Practical implication: Treat NHI inventory and ownership as a prerequisite for governance, not as an afterthought after access has already spread.

Why discovery alone does not solve NHI governance

Discovery identifies that an identity exists, but governance needs more than enumeration. The article distinguishes visibility from context: who owns the identity, which consumers rely on it, what resources it can reach, and whether it carries toxic privilege combinations. Without that context, teams may find hundreds of service accounts yet still be unable to prioritise risk or safely act on findings. This is why NHI programmes fail when they stop at scanning and never attach lifecycle state, dependency mapping, and business accountability to the discovered identity.

Practical implication: Build discovery workflows that resolve ownership and usage context before remediation decisions are made.

Why rotation and attestation have to be lifecycle events

Secret rotation, least-privilege review, and attestation are not isolated tasks for NHIs. They only work when they are part of a lifecycle model that tracks creation, change, recertification, and retirement. The article notes that PAM can enforce rotation inside a vault, but it cannot by itself provide full discovery or lifecycle governance across unknown NHIs. In practice, the technical issue is not just stale credentials, but the absence of a repeatable process that can move an NHI from discovery to right-sizing to ongoing review without breaking production dependencies.

Practical implication: Link rotation and recertification to lifecycle workflows so NHI changes are governed, scheduled, and auditable.

Breaches seen in the wild

• Azure Key Vault Contributor escalation 2024: Datadog found Azure Key Vault Contributor could add itself to access policies and read every secret, key and certificate in a vault.
• Scania insurance portal breach 2025: An attacker used an external user login, likely stolen by infostealer malware, to take insurance claim documents from a Scania portal.

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

NHI Mgmt Group analysis

Non-human identity governance fails when ownership is assumed instead of proven. The article exposes a structural weakness in many identity programmes: they can manage a person because a person can be enrolled, reviewed, and offboarded, but they cannot do the same for an API key or service account without first establishing who is accountable for it. That makes ownership assignment the governance hinge, not a nice-to-have metadata field. Practitioners should treat ownership as the control that unlocks every other NHI decision.

The NHI lifecycle is now the missing governance layer between discovery and control. Visibility without lifecycle state produces inventory, not security. Once an NHI is discovered, the programme still has to decide whether it is justified, least-privileged, rotated, attested, and eventually decommissioned. This is why NHI management belongs in the same governance conversation as human identity lifecycle, even though the actor is different. The practical conclusion is that lifecycle workflows must expand beyond people to cover every non-human credential class.

Standalone PAM and CNAPP controls leave a governance gap that attackers and operational drift both exploit. PAM can rotate known secrets, and CNAPP can surface cloud misconfiguration, but neither establishes universal ownership, consumer resolution, or cross-environment accountability. The article’s core message is that those capabilities are necessary but incomplete when NHIs exist across SaaS, cloud, and on-premises systems. Practitioners should not treat tool coverage as governance coverage.

NHI discovery, least privilege, and recertification are now one control chain. The article ties the work together correctly: first discover, then assign ownership, then right-size access, then include the identity in attestation and audit workflows. Separating those steps creates blind spots where the credential exists but no one can safely govern it. That means identity teams need a single lifecycle model for machine identities, not a collection of disconnected security tasks.

Non-human identity security is becoming a lifecycle discipline, not a point-product discipline. The article’s best-practice list is really a governance model in disguise. It starts with inventory, but it ends with continuous monitoring, safe rotation, and integration into onboarding and offboarding workflows. That is the right direction for the market, because the problem is not simply that NHIs exist; it is that they are often outside the organisation’s normal control plane. The implication for practitioners is to measure governance maturity by lifecycle coverage, not by how many secrets tools are deployed.

What this signals

NHI lifecycle governance is the control boundary that turns discovery into accountability. Once a machine identity is visible, the next question is not just whether it exists, but whether the organisation can explain its owner, dependency, and retirement path. That is the point where NHI programmes move from inventory hygiene to real governance.

A mature programme will measure success by how many credentials can be tied to a living ownership and recertification process, not by how many were merely found. For identity teams, the operational shift is toward governed change management for every service account, token, key, and certificate.

For practitioners

• Automate NHI discovery across all environments Build inventory processes that cover service accounts, API keys, tokens, and certificates in cloud, SaaS, and on-prem systems. Discovery must be continuous because NHIs are created and reused outside normal human onboarding paths.
• Assign explicit owners to every NHI Require each non-human identity to have a named accountable owner who can approve changes, explain usage, and accept decommissioning responsibility. Without ownership, lifecycle decisions stall and risk decisions become guesswork.
• Right-size privileges before recertification Review the resources each NHI can reach, identify toxic combinations, and remove permissions that are not required for the identity’s current function. Use that review as the basis for attestation rather than treating recertification as a formality.
• Integrate NHIs into lifecycle workflows Place non-human identities into onboarding, offboarding, recertification, and attestation workflows so changes are tracked like other governed identities. That is the point where operational dependency and auditability meet.
• Automate secret rotation with dependency checks Rotate credentials on a schedule that accounts for the applications and consumers using them, not just the age of the secret. Rotation that ignores dependency mapping can break production, so it needs governance and validation, not just automation.

Key takeaways

• The article’s central risk is not only exposed machine credentials, but the absence of lifecycle ownership and governance around them.
• Its practical evidence is that discovery, rotation, least privilege, and attestation must work together across service accounts, tokens, keys, and certificates.
• The control lesson is to treat non-human identity governance as a lifecycle programme, not as a vaulting or scanning exercise.

Key terms

• 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.
• NHI lifecycle governance: NHI lifecycle governance is the set of policies and controls used to manage non-human identities from creation to retirement. It covers approval, issuance, rotation, monitoring, access review, revocation, and deletion for service accounts, API keys, tokens, certificates, and AI agents, so machine identities remain accountable, least privileged, and auditable.
• Secrets Rotation: Secrets rotation is the practice of replacing credentials on a schedule or after an event so exposed values stop working quickly. In NHI programmes, rotation must be tied to ownership and automation, otherwise credentials remain valid long after teams believe the risk has been addressed.
• Ownership Resolution: Ownership resolution is the act of assigning a responsible business or technical owner to an identity or credential. For NHIs, it is a prerequisite for governance because without a named owner, security teams cannot justify access, approve changes, or retire the identity with confidence.

Deepen your knowledge

NHI governance, identity lifecycle management, and secrets management are core topics in our NHI Foundation Level course, the industry's only accredited NHI security programme. If you are building or maturing an IAM programme, it is worth exploring.