A risk register is a structured record of identified risks, their likelihood, impact, owners, and response plans. In identity-heavy environments, it should include the identities and access paths that create the risk, not just the business system name, so the register can drive real remediation.
Expanded Definition
A risk register is more than a list of threats. In NHI and IAM environments, it is a decision record that ties each risk to the credential, service account, workload, API key, or agent involved, along with likelihood, impact, ownership, and treatment. That distinction matters because a risk named only after a business application often hides the actual failure point, such as an overprivileged service account or an unrotated secret. Guidance varies across vendors on how granular the register should be, but a useful register must be actionable enough to drive remediation and revalidation. The structure also aligns well with the NIST Cybersecurity Framework 2.0, which emphasizes risk management as an operational process rather than a documentation exercise. NHIMG’s Ultimate Guide to NHIs — Key Challenges and Risks shows why the register must reflect the identity layer, not just the system layer, and the Top 10 NHI Issues page reinforces how hidden identity sprawl becomes a governance blind spot. The most common misapplication is treating the risk register as a compliance artifact, which occurs when entries describe applications without naming the identities and access paths that actually create exposure.
Examples and Use Cases
Implementing a risk register rigorously often introduces maintenance overhead, requiring organisations to balance better remediation visibility against the effort needed to keep identity-level details current.
- A cloud platform team records an unrotated API key as a distinct risk item, with the owning team, rotation date, blast radius, and containment plan.
- A security group logs an excessive-privilege service account discovered in CI/CD, linking the entry to the pipeline, repository, and deployment role it can reach.
- An AI engineering team tracks an agent tool credential in the register after reviewing OWASP NHI Top 10 style risks, so the remediation is tied to the agent’s execution path.
- A third-party access review adds externally exposed NHIs to the register, using the same owner and treatment fields as human access exceptions so follow-up is measurable.
- A governance team updates the register after a secrets leak because the issue was not the application alone, but the stored credential in source code and the missing revocation step.
For identity-heavy programs, the register becomes useful only when it captures the chain from secret to identity to privilege to exposure. That is the difference between noting that “the platform is risky” and knowing exactly what must be rotated, revoked, or constrained.
Why It Matters in NHI Security
A weak risk register usually produces delayed action, ambiguous ownership, and repeated exposure of the same non-human identity. That is especially dangerous because NHIs often outnumber human identities by 25x to 50x, and only 5.7% of organisations have full visibility into their service accounts, according to NHIMG’s Ultimate Guide to NHIs. When visibility is poor, the register becomes the only place where risk can be connected to remediation priority. It should therefore capture whether a secret is stored outside a secrets manager, whether the credential is still valid, and whether the identity is exposed to third parties. The same discipline supports the broader governance direction described in Ultimate Guide to NHIs — Why NHI Security Matters Now, where identity compromise is shown to be a material driver of enterprise incidents. Organisations typically encounter the need for a truly actionable risk register only after a breach or failed revocation, at which point the register becomes operationally unavoidable to address.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
OWASP Non-Human Identity Top 10 address the attack and risk surface, while NIST CSF 2.0 and NIST Zero Trust (SP 800-207) set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Non-Human Identity Top 10 | NHI-02 | Focuses on improper secret management and the risks created by exposed NHIs. |
| NIST CSF 2.0 | GV.RM-01 | Defines risk management as a governed process with tracked decisions and accountability. |
| NIST Zero Trust (SP 800-207) | PR.AC-4 | Least-privilege and continuous access decisions depend on knowing identity-level risk. |
Maintain risk register entries as governed records tied to treatment, ownership, and review cadence.
