Fraud screening evaluates a customer, payment, account change or transaction for indicators of deception or unauthorized activity. It combines rules, data, behavioral signals and human review to decide whether to allow, hold, challenge or reject an action.
Which signals may be assessed?
- Identity and account consistency
- Device, network and location anomalies
- Velocity, amount and timing
- New beneficiary or bank-detail changes
- Unusual payer, recipient or product relationships
- Prior disputes, chargebacks or confirmed fraud
How does screening work?
- Collect only the data required for the defined risk.
- Apply deterministic rules and model signals.
- Assign a decision or review priority.
- Request evidence or independent verification when needed.
- Record the final action and reason.
- Feed confirmed outcomes back into control tuning.
Fraud screening vs. sanctions screening
Fraud screening looks for deception or unauthorized behavior. Sanctions screening checks parties and transactions against legal restrictions. A transaction can pass one and fail the other, so controls should not be treated as substitutes.
What should not be automated blindly?
Weak signals, incomplete data and model bias can block legitimate business. High-impact decisions should have proportionate review, an escalation route and explainable reason codes.
How should performance be measured?
Track confirmed fraud prevented, false-positive rate, review time, customer abandonment, losses and rule effectiveness. A higher decline rate is not necessarily better control.

