Multiple approvers are several people or a group assigned to the same approval step, where any one person can resolve the request. This pattern improves responsiveness because the request no longer depends on a single calendar or inbox. It is best suited to routine access decisions where speed matters more than layered scrutiny.
Expanded Definition
Multiple approvers is an approval design pattern used in access governance, change control, and NHI operations where several designated people can satisfy the same approval gate. It is not the same as requiring all approvers to sign off. Instead, the first eligible approver to act resolves the request, which reduces queue time and avoids single-person bottlenecks.
In NHI security, the pattern is usually applied to routine decisions such as granting a service account access to a low-risk resource, approving a standard secret rotation, or unblocking a temporary deployment dependency. Because the request can be completed by any person in the approver set, the control improves operational continuity while still preserving a human review step. Guidance varies across vendors on how many approvers are appropriate and whether approver pools should be role-based, time-bound, or geographically distributed, so organisations should define the approval policy explicitly rather than assuming the tool enforces governance intent.
For broader governance context, the NIST Cybersecurity Framework 2.0 reinforces access control and approval discipline as part of operational resilience. The most common misapplication is treating multiple approvers as a substitute for meaningful review, which occurs when broad approver pools are used for sensitive NHI requests without risk-based routing.
Examples and Use Cases
Implementing multiple approvers rigorously often introduces policy ambiguity, requiring organisations to weigh faster fulfilment against the possibility of weak accountability or uneven review quality.
- A platform team assigns three on-call engineers as approvers for routine service account access so a request can be cleared without waiting on one specific person.
- A secrets management workflow uses an approver pool for standard credential rotation, while high-risk rotations are routed to a narrower privileged review group.
- An engineering manager and a security lead are both eligible to approve a temporary NHI entitlement for a production incident, reducing delay during an outage.
- A cloud operations team uses a rotating approver set for low-impact API key creation, but requires explicit escalation for internet-facing or third-party exposures described in the Ultimate Guide to NHIs.
- A self-service access portal maps approver membership to job role so approvals continue even when individual staff are unavailable, a model that should be aligned to the control discipline described in NIST Cybersecurity Framework 2.0.
Why It Matters in NHI Security
Multiple approvers matters because NHI requests can stall or bypass governance when approval depends on a single person. That is especially important in environments where service accounts, API keys, and automation tokens are already difficult to inventory and control. NHI Mgmt Group reports that only 5.7% of organisations have full visibility into their service accounts, which means approval workflows often operate with incomplete context about what is being authorised and why.
When used well, the pattern keeps operations moving without removing accountability. When used poorly, it creates false confidence: requests move quickly, but approver selection is so broad that no one has clear ownership of the decision. That is a real risk for routine access, because routine is often where policy drift accumulates. The pattern becomes more defensible when paired with clear request categorisation, logging, and periodic review of who is allowed to approve what. For NHI governance, that discipline should sit alongside lifecycle controls described in the Ultimate Guide to NHIs and mapped to the access control expectations in the NIST Cybersecurity Framework 2.0.
Organisations typically encounter the weakness of multiple approvers only after a routine request is approved without adequate scrutiny, at which point the approval model 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 and CSA MAESTRO address the attack and risk surface, while NIST CSF 2.0, NIST Zero Trust (SP 800-207) and NIST SP 800-63 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Non-Human Identity Top 10 | NHI-03 | Approval workflow weakness often reflects excessive NHI permissions and weak request governance. |
| NIST CSF 2.0 | PR.AC-4 | Access permissions should be approved and managed according to least-privilege principles. |
| NIST Zero Trust (SP 800-207) | AC-3 | Zero Trust requires explicit access decisions that remain controlled and auditable. |
| NIST SP 800-63 | Identity assurance guidance informs who is trusted to approve sensitive access decisions. | |
| CSA MAESTRO | Agentic workflows need bounded human approval to prevent unsafe autonomous access changes. |
Restrict approval pools for NHI requests and pair them with least-privilege validation before granting access.
Related resources from NHI Mgmt Group
- How should enterprises govern AI agents across multiple clouds and SaaS platforms?
- How should security teams audit privileged access across multiple clouds?
- How should organisations govern machine identities across multiple regions?
- How should security teams manage cloud identities across multiple applications?
