How Your Business Becomes a Wire Fraud Target (And How to Stop It)

The email lands at 2:47 p.m. on a Thursday. It looks like it came from your accountant. The subject line reads Urgent: Wire Instructions for Tomorrow’s Closing.

The message says the wire routing number has changed. New account details are provided. Everything looks normal. Your office manager approves the wire without a second look.

By the time anyone realizes something is wrong, $85,000 is gone.

This is wire fraud, and it’s not some elaborate heist. It’s an email that looked close enough to real that nobody questioned it.

The Setup is Always Simpler Than You’d Expect

Criminals don’t need to break into your network. They don’t need your passwords. They just need one convincing email and someone too busy to stop and think.

Here’s how it usually works:

Someone in your office gets a message that appears to come from a trusted contact—your CPA, your attorney, a major client, or even your own CEO. The message is simple: wire funds somewhere. The routing number looks right. The account name looks right. Everything matches the pattern of wires your firm sends every week.

The message probably wasn’t sent by the person whose name is on it. It came from a spoofed address designed to look like theirs, or from an account that’s been compromised and taken over.

Your office doesn’t verify the request. Why would they? You get dozens of emails like this.

The wire goes out. By the time anyone realizes it wasn’t real, the money is being funneled through accounts halfway across the country, and recovery is nearly impossible.

Why Your Firm Is the Target

Professional services firms handle sensitive financial information. You process closings, manage settlement funds, execute real estate transactions, and handle client money. If a criminal can trick someone in your office into wiring funds, they’re stealing from a business that already has proven ability to move large sums of money fast.

You’re not targeted because your security is weak. You’re targeted because the people in your office move money regularly. It’s your job. And if someone can exploit that job, the payday is worth the effort.

The attacker doesn’t need to know much about your firm. They just need to know that you handle money and that somebody in your office has the authority to wire it. A little research on LinkedIn tells them your organizational structure. An email that references a real client tells them you’re legitimate. A request that matches your normal business pattern tells them they’ve found the right person.

What Actually Stops It

The answer isn’t complex security. It’s a phone call.

Wire fraud works because email is trusted. It looks real. It comes from a real-looking address. It requests something normal. Nobody stops to think.

But here’s what kills the fraud: verification.

Someone in your office gets the email. Before the wire goes out, they call the person who supposedly sent it. Not an email reply. Not a text. A voice call to the person’s known phone number.

“Hey, I got a wire request from you. Can you verify that?”

In 99% of cases, the person on the other end says “I didn’t send that.” Now you know it’s fraud. The wire stops.

In the other 1% of cases, they confirm it. The wire goes out. And it was actually legitimate.

The phone call verification is imperfect, but it’s effective enough to stop almost all wire fraud in its tracks.

What Your Business Should Do

First: establish a policy. Any wire instruction that comes via email needs voice verification before it goes out. Period. No exceptions. Not if it’s from the CEO. Not if it’s from a client you’ve worked with for ten years. Not if you’re in a hurry.

The policy takes thirty seconds to explain and costs almost nothing to implement.

Second: communicate the policy to everyone who handles wire instructions. Your accountant. Your office manager. Everyone who might receive a wire request. They need to know it’s not optional and they won’t get in trouble for verifying.

Third: enforce the policy. The moment someone skips verification is the moment you lose money. Make it clear that this matters.

Fourth: look at your email authentication. Fraudsters often spoof addresses that look similar to real ones. A system that verifies email addresses are actually coming from their claimed sender catches a lot of fraud before anyone even has to make a phone call.

The Exception

There’s one case where the phone call doesn’t work: if someone’s entire email account is compromised. Then the fraudster is sending from the real email address. The phone number you call might go to a spoofed phone line. You ask to verify, and the fraudster on the other end says “yes, please send it.”

This is rare, but it happens. The protection here is multi-factor authentication on email accounts. If the email account requires multi-factor authentication to log in, it’s much harder for someone to take over.

The Cost Calculation

Wire fraud costs companies millions every year. A single incident costs anywhere from $20,000 to over $500,000 in direct losses, plus investigation costs, client compensation, and regulatory fines.

A policy that requires phone verification costs nothing. It takes thirty seconds per wire.

The only reason not to do it is if you assume it won’t happen to you. And that assumption is exactly what the fraudsters are counting on.