Why Vendor Bank-Account Changes Need Independent Verification
A vendor may email your accounting team to say it has changed banks and needs the next payment sent to a new account. The message can look familiar and may even appear in an existing email thread.
That does not make the new instructions verified. Treat a vendor bank-account change as a high-risk request: pause the payment, independently contact the vendor, and document who confirmed the new instructions. A consistent process can keep one convincing email from becoming an irreversible payment mistake.
Build an Independent Confirmation Step
The email can begin the process, but it should not finish it. Do not reply to the message, click its links, or call a number included in the request to confirm a change. Instead, use a phone number already in your vendor records, a contract, or the vendor’s verified website. Ask for a person who can confirm both the request and the new account details.
Make the control practical for the size of your business. One person can collect the request and the independent confirmation, while a different person approves the vendor-record change or releases the payment. If a smaller team cannot separate every step, a second owner or manager can review the confirmation before the first payment goes out.
Email accounts can be compromised, and a convincing request can come from a real vendor address. The safeguard is not catching every suspicious message. It is using a confirmation path that the message itself cannot control.
Give the First Payment a Second Look
Slow down the first payment sent to new instructions. Confirm the effective date, compare the payee name with the vendor record, and save a short note showing when and how the change was verified. That record helps your team follow the same routine the next time instead of relying on memory.
This does not need to make every payment slow. It gives one especially sensitive change its own checkpoint.
An Oklahoma Contractor Example
Imagine an Oklahoma contractor receives a last-minute email from a material supplier before a large draw payment. The email asks for a new routing and account number and says the old account is closing.
Rather than updating the vendor file from the email, the accounting manager calls the supplier’s known main line, asks to speak with the usual billing contact, and confirms the change. After that confirmation, a second team member approves the update and releases the payment.
Do Not Let Familiarity or Urgency Override the Process
A familiar email thread is not independent verification. A thread can look normal even when an account has been compromised.
Likewise, a rushed payment should not create an emergency exception. Urgency is when a written process matters most. If the vendor cannot be reached through a trusted contact method, pause and escalate the payment internally rather than guessing.
The Simple Rule
For an Oklahoma business, the most useful rule is simple: never use the payment-change request itself to verify a payment change. Use a known contact method, a second set of eyes, and a short record of the confirmation.