Accountability should sit with the team that owns transaction governance, not only with the people operating the wallets. That group needs authority over approved scope, exception handling and policy changes. In practice, custody, risk and security should share the model, but one owner must control what can be signed and under what conditions.
What pre-signing accountability is actually meant to cover
Pre-signing verification is not just a wallet operator checkpoint. It is the control point where the organisation decides whether a transaction is within policy, whether the signer is authorised to approve it, and whether exceptions are handled under an agreed governance model. Accountability therefore has to sit with the function that owns transaction governance, with custody, risk and security contributing to the operating model.
That ownership should include the approved transaction scope, the conditions under which a signature is allowed, and the process for handling edge cases that fall outside normal rules. If those decisions live only with wallet operators, verification becomes procedural rather than accountable, and the control can drift into a rubber-stamp exercise.
How the ownership model should be structured
The cleanest model is a single accountable owner for signing policy, supported by shared operational inputs from custody, risk and security. The accountable team should be able to approve or block what can be signed, define escalation paths, and change policy when business conditions change. Operators can execute the workflow, but they should not be the final authority on whether a transaction is acceptable.
This separation matters because pre-signing verification often crosses team boundaries. Custody understands asset movement and operational feasibility, risk understands tolerance and exception impact, and security understands abuse paths and control weaknesses. A shared model works only when one team owns the final decision and can be held responsible for it.
Why wallet operations alone are not enough
Wallet operators are usually closest to the mechanics of signing, but proximity is not the same as accountability. If the same people who process the transaction also decide what is allowed, governance becomes harder to challenge and easier to normalise over time. The control should verify that the transaction is legitimate under policy, not merely that it is technically signable.
That distinction is especially important for exceptional payments, new counterparties, unusual destinations, and changes to signing thresholds. In those cases, the most important question is not whether the wallet can sign, but whether the organisation has explicitly accepted the risk of signing now.
Risk and Threat Considerations
Weak accountability in pre-signing verification creates both governance risk and abuse risk. If no single owner can define and enforce policy, exceptions can become routine, approval standards can fragment, and malicious or mistaken transactions can be signed without a clear decision trail.
Failure mechanism: The control fails when transaction review is treated as an operational step instead of a governed decision, allowing operators to approve outside policy or to rely on informal escalation rather than documented authority.
Impact: The result can be unauthorised transfers, preventable losses, weak auditability, and a signing process that cannot prove who was accountable for the decision to allow the transaction.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
OWASP ASVS and NIST SP 800-53 Rev 5 set the technical controls, while ISO/IEC 27001:2022 defines the regulatory obligations.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP ASVS | V8 — Authorization | Signing approval is a governed authorisation decision, not just an operational step. |
| Recommendation — Define who may approve or block a transaction and enforce that decision path before signing. | ||
| NIST SP 800-53 Rev 5 | AC-6 — Least Privilege | Pre-signing authority should be limited to the smallest role set that can approve transactions. |
| AU-6 — Audit Record Review, Analysis, and Reporting | Accountable pre-signing verification needs reviewable evidence of who approved exceptions and why. | |
| Recommendation — Restrict signing approval rights to the minimum set of roles that need them. Retain and review signing approval records so exception decisions are attributable. | ||
| ISO/IEC 27001:2022 | A.5.15 — Access control | The question is about who is allowed to authorise signing under policy. |
| A.5.16 — Identity management | Governance depends on clear assignment of accountable approvers and operators. | |
| Recommendation — Define and enforce who can authorise signing and under what conditions. Assign clear ownership for approving, operating, and changing signing policy. | ||
Practitioner Guidance
What to verify: Confirm that one team owns the signing policy, exception approval, and policy change process, and that wallet operators are executing within that policy rather than defining it. The accountable owner should be explicit in governance documents, not implied by who is most operationally involved.
Decision rule: If a transaction falls outside normal policy, it should escalate to the policy owner or designated approver, not be resolved by the wallet operator alone. If the organisation cannot identify who has final authority to approve or reject a non-standard signing request, the accountability model is not complete.
Practitioner takeaway: Pre-signing verification is strongest when execution and accountability are separated, because the team that owns the policy must also own the risk of allowing an exception.
Related resources from NHI Mgmt Group
- Who should be accountable when digital identity verification fails in a payment or signing process?
- Who is accountable when a SaaS support path exposes institutional data?
- Who is accountable when a vendor identity failure exposes institutional data?
- Who is accountable when automated identity verification supports regulated onboarding?
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Reviewed and updated by the NHIMG editorial team on October 21, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org