Manual Access Approval

Expanded Definition

Manual access approval is the human gate in an access workflow where a person reviews a request and decides whether to approve or deny it. In NHI and IAM programs, it often applies to service accounts, API keys, bot credentials, and privileged tool access where policy alone has not yet been fully automated.

Definitions vary across vendors, but the practical distinction is consistent: manual approval is a procedural control, while policy-driven access is an enforcement control. The former depends on reviewer judgment, queue discipline, and evidence quality; the latter depends on codified conditions, identity context, and predictable evaluation. That difference matters because manual approval can be appropriate for exceptional access, yet it becomes brittle when used as the primary control for recurring NHI grants. For a standards-oriented view of access control expectations, NIST SP 800-53 Rev 5 Security and Privacy Controls frames how organisations should structure access decisions and review obligations.

The most common misapplication is treating manual approval as a substitute for least privilege, which occurs when teams use ticket review to compensate for missing policy, ownership, or entitlement design.

Examples and Use Cases

Implementing manual access approval rigorously often introduces queueing and reviewer dependency, requiring organisations to weigh speed and consistency against a higher level of human oversight.

• Granting a new production service account for a one-time migration after a change manager checks the request, validates scope, and records an expiry date.
• Approving access to a sensitive CI/CD environment when the request is tied to a named incident, then revoking it immediately after the work is completed.
• Reviewing a third-party integration request before issuing an API key, especially when the integration can reach customer data or admin functions. The OWASP Non-Human Identity Top 10 is useful here because it highlights recurring NHI control failures that approval queues alone do not solve.
• Requiring human sign-off for temporary elevation into a privileged automation role, then pairing approval with a time-bound credential and a documented owner.
• Escalating an access exception to a security reviewer when the policy engine cannot determine whether the request aligns with business need or data sensitivity.

NHIMG research shows why these approvals become operational pressure points: only 5.7% of organisations have full visibility into their service accounts, according to the Ultimate Guide to NHIs. In practice, that lack of visibility means approvers are often deciding with incomplete context rather than authoritative inventory data. The same guide also notes that 97% of NHIs carry excessive privileges, which makes approval quality far more important than approval speed.

Why It Matters in NHI Security

Manual access approval matters because it is often the last human checkpoint before a non-human identity gains real operational reach. When requests are reviewed inconsistently, organisations can accidentally authorise standing access, excessive privilege, or orphaned credentials that remain active long after the work is finished. That creates a governance gap between intent and enforcement, especially in environments where service accounts, tokens, and automation tools are proliferating faster than ownership can be tracked.

NHIMG data makes the risk concrete: 80% of identity breaches involved compromised non-human identities such as service accounts and API keys, and 91.6% of secrets remain valid five days after notification, according to the Ultimate Guide to NHIs. Manual approval can slow exposure in narrow cases, but it cannot compensate for weak lifecycle controls, poor offboarding, or absent rotation. For governance teams, the right question is not whether humans should ever approve access, but whether human approval is being used to paper over missing policy logic. In a mature program, manual approval should be reserved for exceptions, while routine entitlements move toward governed automation and auditable policy checks. Organisations typically encounter the cost of manual approval only after access sprawl, incident review, or a failed audit, at which point the approval process becomes operationally unavoidable to address.

Related resources from NHI Mgmt Group

• When should organisations use ABAC instead of manual approval for human-initiated access changes?
• What breaks when organisations rely on manual approval and credential sharing for privileged access?
• How should security teams handle access decisions when organisations outgrow manual approval processes?
• Non-Human Identity Access Management