The Voice Sounded Right. The Invoice Still Needed a Second Check.

Business owner reviewing an invoice beside a laptop in a bright office

Picture a Friday afternoon. A regular supplier emails an updated invoice with a new bank account. A few minutes later, someone who sounds like your CFO calls to say the change is real. The request is familiar, the deadline is close, and the payment is already queued.

That is exactly when a good process should slow things down. A familiar email address, caller ID, or voice is not enough to approve new payment details.

Two attack paths, one practical lesson

The FBI’s Internet Crime Complaint Center describes business email compromise (BEC) as a scam that can involve criminals taking over a legitimate business email account and using it to redirect a transfer. The FBI advises businesses to verify account changes through a secondary channel. The FTC also warns that phishing messages can imitate vendors, clients, and coworkers, and recommends calling a number you already know is genuine.

Voice impersonation adds another reason to verify. In a separate alert about an impersonation campaign, the FBI warned that AI-generated voice messages can be difficult to distinguish from a real person. That alert was not specifically about vendor invoices, but it points to a useful rule: recognizing a voice should not be your payment control.

A four-step check for changed payment details

  1. Pause the payment. Treat a new account number, payment method, or unusual deadline as a change that needs review. Do not reply to the message or use the phone number it provides to confirm the request.
  2. Contact the supplier using a number already on file. Use the contact details in your vendor records or a previously verified vendor portal. Ask the supplier to confirm the change and the effective date.
  3. Have a second person approve it. The person entering new payment information should not be the only person who verifies and releases the payment. Keep the approval trail with the invoice.
  4. Compare the new details with your records. Confirm the supplier name, account holder, routing information, and any other fields your bank and approval policy require. If anything differs, stop and resolve it before sending funds.

Make this routine easy to follow. Keep verified vendor contacts somewhere accounts payable can find them, document how payment changes are approved, and make it acceptable for employees to take a few minutes to check a request. A short pause is cheaper than trying to recover a transfer.

If a payment has already gone out

Contact your financial institution immediately and ask whether it can recall or reverse the transfer. The FBI’s IC3 recommends acting as soon as fraud is recognized and filing a detailed report. Preserve the original email, invoice, phone number, and any messages so your bank and investigators have the details.

The simple rule is worth sharing with everyone who handles invoices: new payment instructions must be verified through a trusted, separate channel before money moves.

If your team would like help reviewing its email security and payment-change procedures, talk with Technic about cybersecurity and compliance support.

Sources

Our offices

Technic Business Solutions operates across key U.S. markets, combining local on-site service with secure nationwide remote support. Our teams are positioned to support regulated, growing, and mission-critical organizations wherever they operate.
HeadquaRters
72 Maxwell
Irvine, CA 92618
California
311 E Washington Ave Suite 108
Escondido, CA 92025
Arizona
2414 West 12th St Suite 3
Tempe, AZ 85281
Florida
5225 Tech Data Dr Ste 200 Clearwater, FL 33760
Technic Business Solutions Logo - Managed IT, Cybersecurity, Copier Leasing
Subscribe to our newsletter
The latest news, articles, and resources, sent to your inbox weekly.
Company
About Blog Shipping & Returns Policy Terms of Use Privacy Policy Service Status
Google
Google star 1Google star 2Google star 3Google star 4Google star 5
5.0
verified by Trustindex
Trustindex verifies that the company has a review score above 4.5, based on reviews collected on Google over the past 12 months, qualifying it to receive the Top Rated Certificate.
Los Angeles | Irvine | San Diego | Walnut Creek | Sacramento | Bakersfield | Tampa | Clearwater | St Petersburg | Arizona
© 2026 Technic Business Solutions. All rights reserved.