Vendor-change verification
Do not rely on an email alone to change payment instructions. Verify the request using a trusted phone number or contact path already on file.
Channel-specific controls
Use positive pay for checks, ACH debit blocks or filters where appropriate, and dual control for ACH and wires. Review available bank controls before a loss forces the issue.
Daily monitoring
High-value operating accounts benefit from frequent reconciliation and alerts for large debits, new payees, wire activity, login changes and failed authentication.
Incident response
If fraud is suspected, contact the bank immediately using a known number, preserve evidence and follow internal escalation procedures. Speed can matter when banks attempt recalls or holds.
Primary sources and reference material
Fraud prevention should be a daily operating process.
Good business banking decisions come from matching account structure, controls, insurance, service and payment workflows to how the company actually operates.