Business Fraud & Security

How to Prevent Check and Wire Fraud in Your Business

Fraud isn't something that happens to other businesses — it's happening right now, and small businesses are prime targets. According to Fidelity Information Services, an estimated $50 billion in check fraud attempts were recorded in 2024, with fraud reports having almost doubled since 2021. Add wire fraud to the picture, with losses often reaching tens of thousands of dollars per incident, and the threat becomes impossible to ignore.

The good news? Many types of fraud can be significantly reduced with the right tools and practices. This article shows you how criminals target businesses and what you can do to protect yourself.

The Growing Threat: Check & Wire Fraud Statistics

Check fraud is at an all-time high. According to the FBI's Internet Crime Complaint Center (IC3), businesses and consumers reported staggering potential losses exceeding $12.5 billion in 2024, a significant increase from the prior year. These aren't just big corporations. Small businesses are specifically targeted because they often have fewer security measures in place. Experian data shows that financial fraud against them has surged.

Wire fraud losses are even more devastating. A single incident can cost tens of thousands of dollars, and unlike other types of fraud, wire transfers are often difficult to reverse once processed, especially if reported after funds have been withdrawn. Criminals know this, which is why wire fraud schemes have become increasingly sophisticated and common.

Small businesses face a double threat: they're attractive targets because they process enough money to make fraud worthwhile, but they typically lack the robust security systems that larger companies employ. This makes prevention absolutely critical.

Check Fraud: How Criminals Are Targeting Your Business

Check fraud has evolved far beyond simple forgery. Today's criminals use sophisticated techniques that are surprisingly easy to execute, and they're counting on businesses to continue using an inherently vulnerable payment method.

Why Checks Are So Vulnerable

Paper checks are a fraud waiting to happen. Here's why:

Everything criminals need is printed right on the front of your check. Your business name, address, bank routing number, account number, and signature are all there. A stolen check is essentially an instruction manual for accessing your account.

Checks are easy to intercept in the mail. Whether it's outgoing payments sitting in your business mailbox or incoming checks from customers, mail theft is simple and common. Once a check is stolen, criminals have everything they need.

Checks are simple to alter with readily available tools. Basic household chemicals can erase ink, and check printing software is available to anyone. What looks like a legitimate check can be completely fraudulent.

Common Check Fraud Methods

Check Washing: Criminals use common household chemicals to erase the ink on legitimate checks, then rewrite them with different payee names and amounts. They keep your signature and account information but change everything else.

Counterfeit Checks: Using information from a single legitimate check, criminals create entirely fake checks that look real. They can produce dozens of fraudulent checks from one piece of stolen information.

Mail Theft: Thieves target both business and residential mailboxes, stealing outgoing payments and incoming checks. Some even follow mail carriers, stealing entire bags of mail to sort through for checks.

Altered Checks: Rather than washing the entire check, criminals carefully alter just the payee name or amount, making the fraud harder to detect at first glance.

Check Overpayment Scam: This sophisticated scheme starts with a scammer sending your business a check for more than the agreed amount — perhaps for a product you're selling or a service you're providing. They apologize for the "mistake" and ask you to deposit the check, keep your portion, and send back the remainder via wire transfer, Venmo, or gift card. The original check later bounces as fraudulent, leaving you owing the bank the entire amount, including the money you "sent back." By then, the scammer has disappeared with your refund.

Common Wire Fraud Schemes

Wire fraud is especially dangerous because it exploits trust and urgency while being nearly impossible to reverse.

Business Email Compromise (BEC): Criminals hack or impersonate executives, vendors, or business partners via email. They study your business communication patterns and timing, then strike when they think you'll be most vulnerable.

CEO Fraud: You receive an urgent email that appears to be from your CEO or company president demanding an immediate wire transfer. The message emphasizes confidentiality and urgency, asking you to bypass normal procedures "just this once."

Vendor Impersonation: A familiar vendor sends an email with "updated" payment instructions, including new bank account details. The email looks legitimate, uses the vendor's real information, and might reference actual invoices or projects.

Invoice Manipulation: Criminals intercept legitimate invoices and alter them, changing only the bank account information where payment should be sent. Everything else looks correct, making the fraud hard to spot.

Real Estate Wire Fraud: Businesses buying or selling property receive last-minute wire instructions that appear to come from the title company or real estate attorney. The amounts are large, the timeline is tight, and the pressure is intense—exactly what criminals count on.

Red Flags to Watch For

Recognizing fraud before it happens is your best defense. Train yourself and your employees to spot these warning signs:

Urgent requests for wire transfers, especially via email. Legitimate businesses rarely demand immediate wire transfers without proper verification. Urgency is a manipulation tactic.
Last-minute changes to payment instructions or bank account details. If a vendor you've paid the same way for months suddenly needs a different account, verify through independent channels before sending money.
Requests to bypass normal verification procedures. Any request to skip your usual processes should raise immediate suspicion, regardless of who seems to be asking.
Unusual requests from vendors or executives. If something feels out of character or doesn't match normal business patterns, trust your instincts.
Emails with slight misspellings in addresses or domains. Criminals create addresses like name@companly.com instead of company.com, or use subtle character substitutions that are easy to miss.
Requests for secrecy or confidentiality about the transaction. Legitimate business transactions don't require secrecy from your own accounting or management team.
Any call from "your bank" requesting personal or account information we already have or multifactor tokens on your personal device. River Valley Community Bank will never call asking for information we already have on file or the token code sent to your device for multifactor authentication. This is always a scam.

Essential Fraud Prevention Strategies for Small Businesses

Protection doesn't require expensive systems or complex processes. These straightforward strategies dramatically reduce your fraud risk.

Implement Positive Pay Services

Positive Pay is one of the most effective fraud prevention tools available, and it's simple to use.

How it works: Positive Pay compares the checks you've actually issued against checks presented for payment. When a check comes in for processing, the system automatically flags any discrepancies—wrong amount, wrong payee, or a check number you never issued.

You review flagged items and approve legitimate checks or reject fraudulent ones before they clear. This gives you control and real-time protection that paper checks alone can never provide.

The impact is significant: businesses using Positive Pay see dramatically reduced check fraud losses. It's a simple step that stops most check fraud attempts before money leaves your account.

Secure Check Handling Practices

If you continue using checks, treat them like cash:

Store blank checks in a locked, secure location. Never leave check stock in unlocked drawers or visible areas. Treat blank checks as you would a pile of cash.
Limit who has access to check stock. The fewer people who can access checks, the lower your risk. Track who has access and review this list regularly.
Use security features on checks. Order checks with watermarks, security ink, and microprinting. These features make checks harder to alter or counterfeit.
Never leave outgoing checks in unsecured mailboxes. Drop checks directly at the post office or in secure collection boxes. Don't raise the flag on your mailbox announcing checks are waiting to be stolen.
Reconcile accounts frequently to catch fraud early. The faster you spot fraudulent activity, the better your chances of recovery. We recommend you review accounts daily.

Consider Moving Away From Checks

The most secure check is the one you never write. Electronic payment systems eliminate the vulnerabilities that make checks such an attractive target for criminals.

Use ACH payments whenever possible. ACH transactions are faster, cheaper, and far more secure than checks. You get real-time confirmation and electronic tracking that checks can't provide.
Implement electronic payment systems for all routine transactions. Most vendors prefer electronic payments because they're faster and more reliable.
Reduce or eliminate check usage for recurring payments. There's no reason to write the same check every month when you can automate the payment securely.
Electronic Bill Pay through your online banking provides a secure alternative to mailing checks while maintaining your control over payment timing and amounts.

Practice Strict Verification Procedures

The simplest wire fraud prevention costs nothing but could save you thousands:

Require callback verification for ALL wire transfer requests. No exceptions, regardless of who appears to be requesting the wire. Every single wire transfer requires independent verbal confirmation.
Use known phone numbers, not numbers provided in emails. If an email asks you to wire money and provides a callback number, don't use it. Look up the number independently or use contact information you already have on file.
Implement dual authorization for wires above certain amounts. Require two people to approve large wire transfers. This creates accountability and makes it harder for fraud to succeed.
Never process wire transfers based solely on email requests. Email can be compromised. Always verify through another channel before initiating any wire transfer.

Strengthen Email Security

Most wire fraud starts with a compromised or spoofed email. Protect your email systems:

Use multi-factor authentication for all email accounts. This single step prevents most email account takeovers. Even if criminals have your password, they can't access your account without the second authentication factor.
Train employees to recognize phishing attempts. Regular training helps employees spot suspicious emails before clicking links or sharing information. Make fraud awareness part of your company culture.
Verify any payment instruction changes through independent channels. If you receive an email changing payment details, pick up the phone and call using a known number to confirm.
Be suspicious of urgent requests that bypass normal procedures. Legitimate business rarely requires you to skip security procedures. Urgency is a manipulation tactic used by criminals.

What to Do If You Suspect Fraud

Time is critical when you suspect fraud. Act immediately:

Contact your bank right away. For River Valley Community Bank customers, call (530) 755-0418 during business hours. Report lost or stolen cards 24/7 at 1-800-500-1044 or 1-866-234-4691. The faster you report fraud, the better chance of recovering funds or preventing additional losses.

Document everything. Write down dates, times, amounts, and all communications related to the suspected fraud. Save emails, texts, and any other documentation.

Preserve evidence. Don't delete suspicious emails or throw away altered checks. Law enforcement and your bank will need this evidence.

File a police report. Even if recovery seems unlikely, file an official report. This creates documentation you'll need for insurance claims and may help catch criminals. Keep in mind: business accounts have different protections than consumer accounts. For businesses, recovery may depend on the type of transaction and how quickly it is reported. When in doubt, report immediately.

Notify other relevant parties. If vendor information was compromised, warn them. If an employee's email was hacked, notify everyone they communicate with. Quick notification prevents fraud from spreading.

Prevention Is Your Best Investment

Fraud prevention isn't just about avoiding losses — it's about protecting your business's future, your reputation, and your relationships with vendors and employees. The costs of fraud extend far beyond the stolen money: time spent on recovery, damaged relationships, stress, and disruption to your operations.

The reality is that most fraud is preventable. Criminals succeed because they count on businesses taking shortcuts, trusting without verifying, and continuing to use vulnerable payment methods like paper checks. By implementing the strategies in this article, you can dramatically reduce your risk.

At River Valley Community Bank, we're committed to helping you protect your business. Our Positive Pay services*, secure online banking features, and fraud detection systems provide layers of protection, but they work best when combined with smart business practices and employee awareness.

Don't wait until you're a victim to take fraud seriously. The time to strengthen your defenses is right now, before criminals target your business.

Ready to strengthen your fraud protection? Contact River Valley Community Bank at (530) 755-0418 to learn about our Positive Pay services and fraud prevention tools. Curious about implementing Positive Pay or ACH in your business? We can help! Talk to a River Valley Community Bank expert and we’ll help you protect your business from fraudulent payments.

Prevention is always easier — and cheaper — than recovery. Protect your business today.

*Available for enrolled business customers