Controls drift as the business changes
A screening system is calibrated to a particular customer base, product set, data model, and risk appetite. As those inputs change, thresholds and matching logic can become less effective even when the technology continues to operate without obvious failure.
An annual review should therefore test outcomes, not simply confirm that a policy and vendor contract remain in place.
Re-test data, logic, and escalation
Effective assurance examines the full control chain: the quality of names and identifiers entering the system, the lists and update frequency used, the treatment of aliases and ownership, and the decisions made after an alert is generated.
- Sample cleared alerts to assess false-negative risk and reviewer consistency.
- Test customer and payment data for truncation or formatting loss.
- Confirm that list updates reach every relevant screening environment.
- Review escalation records for timeliness, rationale, and senior oversight.
Turn findings into controlled change
Threshold adjustments should be documented, tested before release, and monitored after implementation. A reduction in alerts is not evidence of improvement unless the firm can show that risk detection remains effective.
The review should conclude with named owners, remediation dates, and a clear record of accepted residual risk. That turns a periodic exercise into evidence that the control remains aligned with the firm's current exposure.
Discuss the implications
Speak with our advisory team about how these considerations apply to your organisation or transaction.
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