Cat-13 · T148 · B2B Payments & Platform Operations

B2B Payment Fraud Detection Heuristics Builder

Configure fraud detection heuristics for B2B payment fraud: Business Email Compromise (BEC), invoice manipulation, supplier impersonation, and change-of-bank-details fraud. Outputs rule pseudocode, detection checklist, and operational control recommendations.

Scope Note — This tool covers B2B payment fraud heuristics only. For AML transaction monitoring rules, see the AML/KYC Hub (Cat-12 · T116 — Transaction Monitoring Rule Builder).

B2B Fraud Invoice Fraud BEC Zero PII Client-Side

Last Reviewed · 2026-05-12

🔒 All inputs are processed locally in your browser. No data is transmitted. Do not enter real personal data — use synthetic or anonymised inputs only.

Fraud Rule Configuration

Organisation Size

Monthly AP Spend (USD)

Single Payment Approval Threshold (USD)

Fraud Types to Configure

Business Email Compromise (BEC)

CEO/CFO impersonation, urgent wire requests

Invoice Manipulation

Amount alteration, duplicate invoices, phantom invoices

Supplier Impersonation

Lookalike domains, forged letterheads, fake supplier setup

Change-of-Bank-Details Fraud

Fraudulent bank account update requests

Detection Sensitivity

Amount Variance Alert Threshold (%)

Flag invoices differing >X% from PO value

New Vendor Waiting Period (days)

Hold payments to vendors added within X days

Select fraud types and click Build Detection Rules