Invoice Fraud Checker: How to Spot Fake Invoices and Last-Minute Payment Changes

What a invoice fraud checker should look for

Most invoice fraud starts with a fake invoice, a supplier-impersonation email, or a message saying payment details changed at the last minute. The attacker often copies a real vendor name, amount, and timeline so the request feels operational rather than suspicious. The goal is simple: get your team to send a real transfer to the wrong bank account.

Top red flags to watch for

1. A supplier suddenly asks you to update bank details or resend payment to a new account.

2. The request uses urgency, confidentiality, or pressure to bypass normal approval steps.

3. The sender domain, reply path, or attachment details are slightly off from the real vendor.

How to check it with AskdwinAI

Step 1. Paste the invoice email or message into AskdwinAI to detect impersonation and payment-diversion language.

Step 2. Verify bank-detail changes through a trusted phone number or approval process outside the email thread.

Step 3. Check attached invoices, reply addresses, and domains for subtle mismatches before approving payment.

What to do if it is a scam

Step 1. Pause the transfer until the bank details and invoice request are independently verified.

Step 2. Alert your finance team and lock in a second-channel callback step for all payment changes.

Step 3. If money was sent, contact your bank immediately and preserve the full email chain as evidence.