Top Fraud Red Flags that Each Store Owner Must Know

Recognizing these warning signs early protects your revenue, reputation, and customer trust. This guide covers red flags across customer behavior, order and shipping details, billing and vendor relationships, and communication, along with what to do when you spot them. For a broader prevention framework, see our ecommerce fraud prevention guide.

Understanding Fraud

Fraud is a serious concern that every merchant must be well-versed in to protect their business. By understanding the ins and outs of fraud, you can stay one step ahead of potential threats. Let's delve into the key aspects of fraud and equip you with the knowledge you need to safeguard your store.

Definition and Types of Fraud

Fraud, in simple terms, refers to deceptive activities aimed at gaining an unfair advantage or financial gain. As a merchant, it's crucial to familiarize yourself with the different types of fraud you may encounter:

• Identity Theft: Fraudsters assume someone else's identity to make unauthorized transactions, often using stolen personal information.
• Chargebacks: Dishonest customers dispute legitimate transactions to obtain refunds, leaving merchants at a loss.
• Account Takeover: Cybercriminals gain unauthorized access to customer accounts, allowing them to make fraudulent purchases.

Unraveling Fraud Techniques

Fraudsters employ various techniques to carry out their malicious activities. By staying informed about these techniques, you can identify potential red flags and take appropriate action:

• Phishing Scams: Fraudsters pose as trustworthy entities, tricking individuals into revealing sensitive information like passwords and credit card details.
• Synthetic Identity Fraud: This involves creating fictitious identities using a combination of real and fake information to commit fraudulent acts, a technique increasingly assisted by generative AI tools capable of producing convincing fake documents and, in some cases, AI shopping agents making purchases on a fraudster's behalf; see our agentic commerce fraud playbook for how this is changing merchant liability.
• Card Skimming: Criminals use devices to steal credit card information when customers swipe or insert their cards at compromised payment terminals.

Red Flags in Customer Behavior

As a merchant, it's crucial to be aware of the red flags in customer behavior that could indicate potential fraud. By staying vigilant and recognizing these warning signs, you can protect your business from fraudulent activities. 

Let's explore some key indicators that require your attention:

1. Frequent Order Cancellations and Returns

Keep an eye on customers who frequently cancel orders or return items. While it's natural for some customers to change their minds occasionally, a consistent pattern of cancellations and returns may raise suspicion. Pay attention to customers who repeatedly order high-value items only to cancel them shortly afterward.

2. Inconsistent Shipping and Billing Addresses

When the shipping address differs from the billing address, it's worth investigating further. Fraudsters often attempt to use stolen credit cards by having products shipped to a different location. Be cautious of customers who frequently change their shipping addresses or provide addresses that don't match their billing information.

3. Abnormal Purchasing Patterns

Unusual purchasing patterns can be a red flag for potential fraud. Look out for customers who make a significant number of orders within a short period, especially if those orders involve high-value items. Fraudsters may attempt to exploit businesses by placing multiple orders with stolen credit cards before they get flagged.

4. Multiple Failed Payment Attempts

If a customer repeatedly tries and fails to make a payment, it could be a sign of fraudulent activity. Fraudsters may attempt to use stolen credit card information, and multiple failed payment attempts can indicate that the card has been blocked or flagged for suspicious behavior.

5. Use of Stolen or Unauthorized Credit Cards

Watch out for customers who provide credit card information that doesn't match the name on the account or whose card has been reported as stolen. Be diligent in verifying the legitimacy of the card and the customer's identity before processing the transaction.

6. Suspiciously High-Value Transactions

Transactions involving unusually high amounts should be thoroughly examined. Fraudsters may attempt to make significant purchases to maximize their gains before the fraudulent activity is detected. Exercise caution when dealing with orders that seem unusually large or out of the ordinary for your business.

Red Flags in Order and Shipping Details

As a store owner, being aware of red flags in order and shipping details can help you identify potential fraudulent activities and protect your business. By paying attention to certain indicators, you can minimize the risk of falling victim to fraud. 

Here are some key red flags to watch out for:

1. Mismatched or Incomplete Information

When processing orders, keep an eye out for any discrepancies or missing details in the shipping information. These inconsistencies can be potential red flags for fraudulent transactions. Look for:

• Incomplete shipping addresses: Orders with missing apartment numbers, suite numbers, or incomplete street names could indicate fraudulent intent.
• Phone numbers that don't match the location: Be cautious if the provided phone number doesn't align with the shipping address. Fraudsters often use fake or untraceable numbers.
• Inconsistent email addresses: If the email address used for placing an order differs significantly from the customer's name or appears suspicious, it could be a warning sign.

2. Expedited Shipping Requests

Fraudsters often attempt to rush their fraudulent orders, hoping to receive the goods before their illicit activities are detected. Pay attention to the following:

• Frequent demands for expedited shipping: If you notice a pattern of customers consistently requesting expedited shipping, especially when combined with other red flags, exercise caution before processing the order.
• Inconsistencies between the shipping address and expedited requests: Take note if the shipping address suggests a remote or distant location, but the customer insists on overnight or express shipping. Such inconsistencies warrant further investigation.

3. High-Risk Shipping Destinations

Certain countries or regions have a higher risk of fraudulent activities. Stay vigilant when processing orders destined for these locations:

• Shipping to high-risk countries or regions: Some countries are known for a higher incidence of fraud. Conduct thorough research on such areas and exercise extra caution when fulfilling orders to these destinations.
• Frequent shipping to temporary addresses: If you notice a trend of orders being shipped to temporary addresses like hotels or PO boxes, it could be a potential red flag. Fraudsters often use these addresses to avoid detection and capture.

Red Flags in Communication and Contact Details

When it comes to running an online store, effective communication and reliable contact information are crucial for building trust with your customers. However, in the world of fraud, there are certain red flags to watch out for. 

By being aware of these indicators, you can protect your business from potential scams and fraudulent activities.

1. Suspicious Customer Inquiries

As a merchant, you may encounter unusual customer inquiries that raise concerns about potential fraud. These inquiries often revolve around security measures or verification procedures. 

If a customer starts asking probing questions about your fraud prevention measures or attempts to bypass security checks, it could be a warning sign.

2. Email Anomalies

Email communication is a common way for customers to interact with your business. However, it's important to be cautious of emails that exhibit suspicious characteristics. 

Keep an eye out for emails containing suspicious attachments or links, as these may lead to phishing attempts or malware. 

Additionally, be wary of emails coming from free webmail services like Gmail or Yahoo, instead of corporate email addresses, as this could indicate a fraudulent intent.

3. Fake Contact Information

Valid and reliable contact information is vital for a legitimate business. Fraudsters, however, may provide fake contact details to hide their true identities. Look out for invalid or non-existent phone numbers and email addresses. To enhance trust, consider implementing email verification to ensure the authenticity of the email addresses provided.

If you find that customer inquiries go unanswered or the provided contact information is consistently non-responsive, it could be a red flag indicating fraudulent activity.

Red Flags in Reviews and Feedback

By keeping an eye out for these warning signs, you can protect your business and maintain a positive reputation. Let's explore the key red flags in reviews and feedback that every merchant should be aware of.

1. Unusual Review Patterns

When analyzing customer reviews, be attentive to unusual patterns that may raise suspicions. Pay close attention to sudden surges in negative reviews or ratings within a short period of time. 

Fraudsters may attempt to damage your reputation by orchestrating a wave of negative feedback. Similarly, if you notice overwhelmingly positive reviews with no negative feedback at all, it could be a red flag of fake or manipulated reviews.

2. Suspicious User Accounts

Keep an eye out for suspicious user accounts that leave reviews. If you come across multiple accounts leaving similar reviews or ratings, it could indicate a coordinated effort to deceive potential customers. 

Additionally, be wary of a sudden influx of new accounts with high ratings. Fraudsters may create fake accounts to artificially boost their products or services.

3. Incoherent or Inaccurate Reviews

Read through the content of reviews carefully. Incoherent or inaccurate reviews should be treated with caution. If you come across reviews that have inconsistent product descriptions or mention unrelated or irrelevant products, it could be an indication of fraudulent activities. Fraudsters may use generic or misleading reviews to manipulate potential buyers.

Billing Fraud Red Flags

Billing fraud shows up in the payment details themselves rather than in shipping or account behavior. Watch for:

• Duplicate or near-duplicate charges: The same amount charged twice in quick succession, sometimes with a slightly different reference number, can indicate a manipulated or replayed transaction.
• Multiple cards tried on one order: Several different cards attempted for a single purchase, especially in rapid succession, is a classic sign of card testing or a stolen card list.
• Invoice or charge amount mismatched to the quoted price: A final charge that doesn't match what the customer agreed to, without a clear reason (tax, shipping, currency conversion), is worth a manual check.
• Billing address changed shortly before or after a large charge: Especially when paired with a request to redirect a refund or shipment.
• Repeated declines followed by an approval on a different card: A pattern worth flagging to your payment service provider, since many PSPs offer velocity-checking tools built for exactly this pattern.

Vendor Fraud Red Flags

If your business pays suppliers or contractors, vendor fraud is a separate risk from customer-side fraud, and it hits accounts payable rather than checkout. Common indicators include:

• Duplicate invoices or invoices for goods never delivered: Cross-check invoice totals against purchase orders and delivery records before paying.
• Vague billing descriptions or missing supporting documentation: Legitimate vendors can usually provide an itemized breakdown on request.
• Sudden, unexplained changes to bank details: A vendor asking you to redirect payment to a new account, especially under time pressure, is one of the most common vendor-impersonation fraud patterns.
• Repeated "emergency" or rush payment requests: Pressure to skip normal approval steps is a red flag regardless of how plausible the reason sounds.
• A vendor with no verifiable business history, tax ID, or registration: Especially for a new supplier requesting a large first payment.
• Payments just below your approval threshold: A pattern of invoices sized to avoid a manual review step warrants a second look.

Statistical Impact of Friend Fraud and Chargebacks in Ecommerce

Ecommerce fraud and chargebacks are a large and growing cost of doing business online. Understanding the statistical impact of friend fraud, also known as chargeback fraud, is crucial for ecommerce merchants. 

Statistics on Friendly Fraud and Chargebacks:

• Global cost of ecommerce fraud: Industry estimates put global ecommerce fraud losses at roughly $48 billion in a single recent year, with merchants losing around 3% of total revenue to fraud on average.
• Friendly fraud's share of chargebacks: Estimates vary by methodology, but friendly fraud is widely cited as the largest single category, accounting for somewhere between roughly a third and over 70% of chargeback volume depending on the source and industry.
• Chargeback volume growth: Total chargeback volume is projected to grow from about 238 million in 2023 to roughly 337 million by 2026, and every dollar lost to fraud tends to cost merchants more once chargeback fees and processing costs are added; track your own exposure with a chargeback ratio calculation.

Common Types of Friendly Fraud

• False Claims of Non-receipt: One of the most prevalent forms of friendly fraud occurs when a customer receives a product but files a chargeback claiming that they never received it.
• Product Misrepresentation Claims: Customers may falsely claim that the received product does not match its description, even though it does. This type of fraud adds to the financial burden on merchants.
• Unauthorized Charges: Customers may dispute charges, alleging that they were billed more than they agreed to pay, despite having willingly made the purchase.

Frequently Asked Questions

What are fraud red flags?

Fraud red flags are warning signs, in customer behavior, order details, billing, vendor relationships, or communication, that suggest a transaction, account, or invoice may not be legitimate. No single flag is proof of fraud, but multiple flags together warrant closer review.

What are common billing fraud red flags?

Duplicate or near-duplicate charges, multiple cards attempted on one order, a charged amount that doesn't match the quoted price, and a billing address change shortly before or after a large charge are common billing fraud indicators.

What are common payment fraud red flags?

Repeated failed payment attempts, a card that doesn't match the account name, mismatched shipping and billing addresses, and unusually high-value or unusually frequent transactions are the most common payment fraud red flags.

What are vendor fraud red flags?

Duplicate invoices, vague billing descriptions, sudden unexplained changes to a vendor's bank details, repeated urgent payment requests, and a new vendor with no verifiable business history are the main vendor fraud red flags in accounts payable.

What are new account fraud red flags?

A new account placing an unusually large first order, requesting expedited shipping immediately, using a payment method that doesn't match the account name, or providing an email and phone number that don't align with the shipping address are common new account fraud signals.

Catching Red Flags Still Doesn't Stop Every Chargeback

Even careful red-flag screening won't catch every fraudulent order, and legitimate chargebacks still happen. When one lands despite your best prevention efforts, Chargeflow automates the response process: it collects order, shipping, and customer-communication evidence, builds a case-specific representment, and submits it to the issuing bank on your behalf, so disputing a chargeback doesn't mean manually reconstructing the paper trail every time.