BeyondFS carried out a structured review and overhaul of the bank's fraud screening environment. We assessed c.129 rules, separating those that were genuinely tunable from those that were ineffective, obsolete or poorly designed.
To tune with confidence, the bank needed evidence. We built a productive case library from scratch, drawing together known attempted and successful frauds from across the business, then matched those events back to transaction data to see whether they had been detected, which rules had fired and where coverage gaps remained.
Key elements of the approach included:
- A rule-by-rule assessment of c.129 fraud screening rules to separate tunable rules from ineffective, obsolete or poorly designed ones
- A productive case library built from front office, operations, customer services, compliance and second line investigations
- Transaction-level analysis that identified invoice and payment redirection fraud as the dominant typology, and led to the design of a new rule to detect it
- A review and rationalisation of whitelist and blacklist controls, with a more consistent approach across both
- Annual governance and MLRO sign-off to keep controls sustainable over time
Throughout, we worked closely with operational investigators so that rule changes and new logic reflected real payment behaviour and practical alert handling, not just theoretical design.
