<p><strong>Established in 2014, the OPMC Anti-Fraud plugin is <em>The Original</em> fraud prevention plugin for WooCommerce.</strong></p>
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<td style="text-align: center;vertical-align: top;border: none;padding: 10px" width="33.33%"><img style="margin: 0 auto" src="https://woocommerce.com/wp-content/uploads/2014/09/Effective-card-attack-prevention-1.png?w=100" width="100" height="100" /></p>
<h3>Effective Card Attack Prevention</h3>
<p>Powerful and reliable card attack prevention, irrespective of attack volume. Also known as velocity attacks.</td>
<td style="text-align: center;vertical-align: top;border: none;padding: 10px" width="33.33%"><img style="margin: 0 auto" src="https://woocommerce.com/wp-content/uploads/2014/09/Powerful-AI-Fraud-Prevention-1.png?w=100" width="100" height="100" /></p>
<h3>Powerful AI Fraud Prevention</h3>
<p>Connect to your ChatGPT account for a powerful AI based expert fraud & card attack detection.</td>
<td style="text-align: center;vertical-align: top;border: none;padding: 10px" width="33.33%"><img style="margin: 0 auto" src="https://woocommerce.com/wp-content/uploads/2014/09/Extensive-Rule-Based-Controls-1.png?w=100" width="100" height="100" /></p>
<h3>Extensive Rule Based Controls</h3>
<p>Utilise OPMC’s comprehensive granular, rule based fraud prevention software tools to prevent and control ecommerce fraud.</td>
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<p></p>
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<td style="text-align: center;vertical-align: top;border: none;padding: 10px" width="33.33%"><img style="margin: 0 auto" src="https://woocommerce.com/wp-content/uploads/2014/09/World-Class-Expertise-1.png?w=100" width="100" height="100" /></p>
<h3>World Class Expertise</h3>
<p>OPMC has specialised experience in eCommerce fraud prevention, advising and working with thousands of eCommerce merchants since 2014.</td>
<td style="text-align: center;vertical-align: top;border: none;padding: 10px" width="33.33%"><img style="margin: 0 auto" src="https://woocommerce.com/wp-content/uploads/2014/09/reliable-monthly-upgrades-1.png?w=100" width="100" height="100" /></p>
<h3>New Features Every Month</h3>
<p>We add new features and new levels of fraud protection as often as once a week.</td>
<p></p>
<td style="text-align: center;vertical-align: top;border: none;padding: 10px" width="33.33%"><img class="alignnone size-medium wp-image-18734006027311" style="margin: 0 auto" src="https://woocommerce.com/wp-content/uploads/2014/09/customer_testimonial_icon_no_bg.png" alt="5 star fraud prevention reviews" width="100" height="100" /></p>
<h3>5 Star Reviews</h3>
<p>OPMC’s fraud & card attack solution has dozens of 5 star reviews.</td>
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<h2>November 2025 Product Update</h2>
<p>We’ve been making major reliability improvements to the plugin this month. This includes improved reliability for preventing Paypal based card attacks, resolving many reCaptcha security hiccups, and overall ensuring the plugin is able to protect sites from card attacks in a higher percentage of cases.</p>
<p>For the technical folks out there, we’ve also recently added more endpoint security, to block more attempts that are common from fraudsters/hackers.</p>
<p>Check out some of the recent new features below!</p>
<h2>November 2025 – NEW FEATURES & ENHANCEMENTS</h2>
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<td style="width: 50%;vertical-align: top;padding: 10px">
<h3>Card Attack Cleanup</h3>
<p>We’ve recently released a new feature – card attack clean up. We’ve listened – when you have experienced a card attack, you want to be able to clean it up quickly – not in hours or days. This new feature allows you to see and quickly remove likely failed fraudulent attempts that are clogging up your store.</td>
<td style="width: 50%;vertical-align: top;padding: 10px">
<h3>Suppress order emails for card attack orders</h3>
<p>Card attacks can create thousands of emails into your store and thousands of bounce back emails which land in your inbox. This release allows you to stop these emails from going out in the first place, so if you do have a card attack you’re not spammed.</td>
</tr>
<tr>
<td style="width: 50%;vertical-align: top;padding: 10px">
<h3>Chargeback support</h3>
<p>We now give you access to leading tools from Kount to more easily handle chargebacks. Sign up within the plugin, and start managing chargebacks.</td>
<td style="width: 50%;vertical-align: top;padding: 10px">
<h3>Improved ease of use</h3>
<p>We’ve taken on board your feedback about usability, and made a dozen small improvements to how the plugin works and looks so it’s easier to use and understand.</td>
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<h2>COMING SOON</h2>
<p>✅ Whitelisting – New features, better support.</p>
<p>✅ API Endpoints – More granular control on what you block and what you allow.</p>
<p>✅ General – Enhanced reliability of card attack prevention in more cases.</p>
<h2>About OPMC’s fraud & card attack prevention solution</h2>
<p>Gain peace of mind by protecting your eCommerce store against credit card testing and velocity attacks. Reach out to OPMC to discover how the <strong>WooCommerce Anti-Fraud Plugin</strong> can safeguard your store and customers.</p>
<p>We invest <strong>thousands of hours annually</strong> in our fraud prevention software, resulting in a <strong>new release every 1-2 weeks.</strong></p>
<p>WooCommerce Anti-Fraud is the <strong data-start="30" data-end="41">premier</strong> off-the-shelf fraud & card attack prevention solution for eCommerce merchants. Equipped with powerful payment fraud & card attack detection tools, it helps you identify and stop fraudulent transactions and credit card fraud in real time. This plugin continuously scans for suspicious activity, blocking threats before they can impact your business. With advanced scoring rules assessing every transaction, you have peace of mind knowing your store is secure and protected.</p>
<h4 style="text-align: left" data-start="447" data-end="473"><strong data-start="454" data-end="471">Why choose OPMC?</strong></h4>
<p style="text-align: left" data-start="474" data-end="679">✅ <strong>10+ Years</strong> – Our fraud & card attack plugin has been around since 2014.</p>
<p style="text-align: left" data-start="474" data-end="679">✅ <strong data-start="568" data-end="620">Regular updates</strong> – 20+ Annual product releases.</p>
<p data-start="668" data-end="745">✅ <strong data-start="670" data-end="703">Block card attacks quickly</strong> – Best in class card attack support for a wider number of stores.</p>
<h2>Better fraud prevention with Anti-Fraud for WooCommerce</h2>
<ul class="wccom-tick-list-primary">
<li><strong>Save time and money</strong> – by reducing the chances of fraud occurring</li>
<li><strong>Reduce your risk</strong> – of fraud for your business</li>
<li><strong>Expert support</strong> – to further secure your store from fraud and other malicious activities</li>
<li><strong>Granular control</strong> – over the who, how & why of purchases</li>
<li><strong>Expanded protection</strong> – Add powerful additional protection with 3rd party integrations</li>
</ul>
<h2>A feature rich product, from over 10 years of research, development and your feedback!</h2>
<ul class="wccom-tick-list-primary">
<li>Immediate access to <strong>24/7 real-time fraudulent order detection</strong> supported by AI/ML processes.</li>
<li><strong>Gain quality insights</strong> into all orders through a system that assigns a risk score to each transaction with customizable prevention settings.</li>
<li>Set <strong>advanced verification protections</strong> like billing address, customer history, behavioral analysis, high-risk geolocation, and more.</li>
<li>A <strong>powerful rule-based fraud prevention plugin</strong> with full WooCommerce compatibility uses an easy-to-use one-click installation.</li>
<li>Consistent updates by a <strong>rapid response team</strong> for capturing new fraud trends.</li>
<li>A fully mobile-optimized solution with <strong>instant notifications to protect your store</strong> from expensive fraudulent orders.</li>
</ul>
<h2>Key Fraud Prevention Features</h2>
<div class="twocol-one">
<h4>70+ settings</h4>
<p>Full control over how you prevent eCommerce fraud on your WooCommerce store.</p>
<ul>
<li data-start="284" data-end="391"><strong data-start="284" data-end="312">Flexible Blocking Rules:</strong> Block by country, IP address (IPv4 & IPv6), proxy detection, or email address.</li>
<li data-start="284" data-end="391"><strong>Superior Velocity Attack Prevention: </strong>Stop card attacks in their tracks using the dedicated page</li>
<li data-start="394" data-end="501"><strong data-start="394" data-end="426">Behavior-Based Restrictions:</strong> Set rules by time of day, order value, purchase volume, or order attempts.</li>
<li data-start="504" data-end="596"><strong data-start="504" data-end="534">Bulk Whitelisting Support:</strong> Import and manage trusted IPs or emails in one simple action.</li>
<li data-start="599" data-end="708"><strong data-start="599" data-end="631">Dedicated Whitelisting Page:</strong> Streamlined interface introduced in version 7.0.2 for easier access control.</li>
<li data-start="711" data-end="802"><strong data-start="711" data-end="744">Google reCAPTCHA Integration:</strong> Helps block bots and prevent carding attacks at checkout.</li>
<li data-start="805" data-end="888"><strong data-start="805" data-end="832">Real-Time Email Alerts:</strong> Get notified instantly when suspicious activity occurs.</li>
<li data-start="891" data-end="994"><strong data-start="891" data-end="918">3rd Party Integrations:</strong> Works seamlessly with MaxMind and Trust Swiftly for added fraud protection.</li>
<li data-start="997" data-end="1083"><strong data-start="997" data-end="1021">Geolocation Control:</strong> Detects anomalies with or without BigDataCloud configuration.</li>
</ul>
<h4>Analytics Dashboard</h4>
<p><img class="alignnone wp-image-18734003762385 size-medium" src="https://woocommerce.com/wp-content/uploads/2014/09/WooCommerce-Anti-fraud-Dashboard-info.png?w=763" alt="WooCommerce-Anti-fraud-Dashboard-info" width="763" height="535" /></p>
<ul>
<li>Discover recent fraudulent activities</li>
<li>View trends over the past week</li>
<li>Risk scores and status of the latest orders</li>
<li>Number of emails blocked in 24 hours</li>
<li>PayPal accounts requiring verification</li>
<li>Complete unified information of fraudulent activities in one place.</li>
</ul>
<h4>Handling Fraud Effectively: Automatically cancel or pause suspicious orders</h4>
<p><img class="alignnone size-full wp-image-18734001237845" src="https://woocommerce.com/wp-content/uploads/2014/09/WooCommerce-antifraud-cancel-and-pause-fraudulent-orders.jpg" alt="Setting to hold or cancel orders with high risk factor." width="980" height="406" /></p>
<p>If a potentially fraudulent transaction is detected, the WooCommerce Anti-Fraud will automatically block or prevent these orders based on your specific configuration. The plugin can easily be configured to perform one or more of the following automated actions:</p>
<ul>
<li>Automatically Cancel the order.</li>
<li>Automatically place the order On-Hold.</li>
<li>Email Admin + Notify store of Suspect Order without changing the order status.</li>
<li>Auto Blacklist email and other Order Details.</li>
<li>Prevent Bank/Payment Gateway access (Pre-payment verification)</li>
</ul>
<h4>Pre-Configured Rules</h4>
<p>WooCommerce Anti-Fraud works out of the box – no need for additional rule configuration. We have defined a collection of default rules that automatically assess and scores each transaction. These pre-configured rules are suitable for most online stores. Moreover, you can easily customize the rules to suit your preferences with just a few clicks and to place higher or lower importance on specific factors/rules.</p>
<h4>Customize the importance of each risk factor</h4>
<p>The WooCommerce Anti-Fraud plugin lets you assign a ‘risk weight’ to each risk factor. This means that you can decide how important each risk is and configure this to your specific sotore. The higher the risk weight for each category, the higher the consideration will be given to the rule in calculating the overall risk score when the risk is detected.</p>
<h4>First-time Purchase Rules</h4>
<p><img class="alignnone size-full wp-image-18734001244042" src="https://woocommerce.com/wp-content/uploads/2014/09/First-time-purchase-rule-set.jpg" alt="First time purchase rule" /></p>
<p>Identify first-time customers or their initial order in a processing state. This rule also allows you to<br />
recognize new customers. Allow Antifraud to understand and make it easier for your existing clients to shop and repurchase.</p>
<h4>Harness the Power of Machine Learning with Maxmind minFraud® integration</h4>
<p><img class="aligncenter wp-image-6426197 size-full" src="https://woocommerce.com/wp-content/uploads/2014/09/minfraud-anti-fraud-woocommerce.jpg" alt="minfraud" width="841" height="581" /></p>
<p>WooCommerce Anti-fraud now includes integration with the<a href="https://www.maxmind.com/en/solutions/minfraud-services"> Maxmind minFraud Score</a> tools. Now, combine existing rules with a smart real-time risk score for each order. This feature gives you an extra layer of security by assessing orders for fraudulent activities using a smart machine learning algorithm by MaxMind. Enabling this feature, you will be notified about the status of the order when the risk score exceeds the threshold set in the minFraud Settings.</p>
<h4>Ordered Quantity and Amount Check</h4>
<p><img class="aligncenter wp-image-6426204 size-full" src="https://woocommerce.com/wp-content/uploads/2014/09/order-and-amount.jpg" alt="order amounts" width="832" height="358" /></p>
<p>These two features can help you reduce chargebacks effectively. You can set the maximum buying amount, number of products and even weighting based on the type of products you are selling to counter fraudulent activities.</p>
<h3 id="anchor-11"></h3>
</div>
<div class="twocol-one last">
<h4>Access Ecommerce Fraud Prevention Experts</h4>
<p>Gain access to OPMC’s experienced team to advise on your ecommerce fraud prevention matters, and access advice for more complex needs and challenges.</p>
<h4>Check the ‘risk’ of each order</h4>
<p><img class="wp-image-18734001227897 aligncenter" src="https://woocommerce.com/wp-content/uploads/2014/09/antifraud-gif.gif" alt="antifraud" width="283" height="456" /></p>
<p>WooCommerce Anti-Fraud plugin automatically assigns a risk score to each order on a scale of 1 to 100. The higher the score, the greater the likelihood of the order being fraudulent. This is called the risk score. Examining the risk score enables you to quickly evaluate the potential risk associated with the transaction and take the appropriate defensive actions. You can find the risk score and receive advice for each order directly within the WooCommerce admin panel.</p>
<p>Beneath the risk score, users can see any warnings linked to the order. The advice provided is related to the rules in place (for example, if a customer’s IP address doesn’t match the billing country). The higher this number is, the more likely it is that the order is potentially fraudulent.</p>
<p><img class="size-medium wp-image-4970463 aligncenter" src="https://woocommerce.com/wp-content/uploads/2014/09/1-anti-fraud-rating.jpg?w=620" alt="anti-fraud rating score" width="620" height="549" /></p>
<h4>Whitelisting of User Roles, Payment Methods and Emails</h4>
<p><img class="alignnone size-full wp-image-18734001238701" src="https://woocommerce.com/wp-content/uploads/2014/09/WooCommerce-antifraud-whitelisting-features.jpg" alt="Settings to whitelist user roles, payment methods and emails" width="980" height="941" /></p>
<p>Bypass user roles, payment methods and emails from fraud rules by whitelisting them.</p>
<h4>Pre-Purchase Assessment of Risk</h4>
<p><img class="alignnone size-full wp-image-18734001243925" src="https://woocommerce.com/wp-content/uploads/2014/09/WooCommerce-antifraud-pre-purchase-assessment.jpg" alt="Pre purchase assessment of orders" width="980" height="531" /></p>
<p>Evaluate customers before they make actual purchases through your Payment Gateway.</p>
<p>Payment Gateway or Bank warning you about too many fraudulent transactions? Pre-payment Verification can help.</p>
<p>If the risk score reaches a high-risk order range, the customer order will be denied in advance, a custom message will appear on the checkout explaining the reason for denial. Add a custom message by typing in the text area in the pre-purchase setting.</p>
<h4>IP, Billing and Shipping Address-based Rules</h4>
<p>Identify threats based on IP, geolocation, phone number, proxy, billing and shipping addresses.</p>
<p><img class="alignnone size-full wp-image-18734002558401" src="https://woocommerce.com/wp-content/uploads/2014/09/Antifraud-Medium-Risk.png" alt="Anti-fraud medium risk score" width="980" height="490" /></p>
<ul>
<li>Physical and IP Address Comparison Rules</li>
<li>Billing and Shipping Address Mismatch Rules</li>
<li>Geolocation and Billing/ Shipping Address Comparison Rules</li>
<li>Proxy Detection</li>
</ul>
<p><img class="aligncenter wp-image-6426203 size-full" src="https://woocommerce.com/wp-content/uploads/2014/09/proxy-check.jpg" alt="check if user is behind a proxy fraud risk dial" width="844" height="400" /></p>
</div>
<h2>Expand fraud prevention with powerful integrations</h2>
<p>The <strong data-start="305" data-end="335">Anti-Fraud for WooCommerce</strong> plugin includes optional integrations with leading third-party services to enhance order screening and security. Some services may require their own accounts or API keys.:</p>
<ul class="wccom-tick-list-primary">
<li><strong>ChatGPT</strong> – AI-based fraud analysis -Adds optional AI-powered insights to order reviews, helping detect emerging fraud patterns and suspicious customer behavior.</li>
<li><strong>MaxMind</strong> <strong>minFraud-</strong> Industry-leading machine-learning risk scoring that enriches your fraud detection with global intelligence signals.</li>
<li><strong>TrustSwiftly Identity Verification</strong> – Enables advanced customer verification using more than 15 methods, including ID checks, SMS, device validation, and more.</li>
<li><strong>Google reCAPTCHA (v2) or Cloudflare Turnstile</strong> – Adds bot protection to checkout, reducing automated card-testing and velocity-based attacks.</li>
<li><strong>Paypal</strong> <strong>Fraud Controls</strong>– Provides additional risk-screening and card-attack protection specifically for merchants processing payments through PayPal.</li>
<li><strong>QuickEmailVerification </strong>– Validates customer email addresses in real time and helps identify disposable, fraudulent, or high-risk addresses.</li>
</ul>
<p>⚠️ <strong>Optional / Enhanced Data Sources</strong></p>
<ul>
<li><strong data-start="1496" data-end="1546">BigDataCloud (Address & Location Intelligence)</strong><br data-start="1546" data-end="1549" />Improves accuracy of IP-to-location and address-related checks when configured with your own API key.</li>
</ul>
<h2>How to Get Started</h2>
<ol>
<li>Buy this extension 🙂</li>
<li>Download, install, and activate the plugin in your WooCommerce store</li>
<li>Check out our detailed documentation to help you customize your fraud prevention tools specific to your store’s needs</li>
<li>Something missing or could be done better? We love feedback – let us know how we’re doing via Support and we’ll gladly assist!</li>
</ol>

Anti-Fraud

<p><strong>The Ultimate Fraud & Card Attack Protection for WooCommerce – Since 2014</strong></p>

<h2>Add fees to orders based on payment method</h2>
<p>The Payment Gateway Based Fees extension enables you to add a fee to an order, depending on the chosen payment gateway.</p>
<p>The fee can be automatically assessed on the price of certain products in the cart or the cart total, in addition to being changed on an order by the shop administrator at any time. A fee may also be applied manually, i.e., if the customer wants to switch payment methods after checkout is completed.</p>
<figure id="attachment_5960427" aria-describedby="caption-attachment-5960427" style="width: 980px" class="wp-caption alignnone"><a href="https://woocommerce.com/wp-content/uploads/2013/11/paymentgatewaybasedfees.jpg"><img class="size-full wp-image-5960427" src="https://woocommerce.com/wp-content/uploads/2013/11/paymentgatewaybasedfees.jpg" alt="Screenshot of the Payment Gateway Based Fees admin/settings page" width="980" height="601" /></a><figcaption id="caption-attachment-5960427" class="wp-caption-text">Screenshot of the Payment Gateway Based Fees admin/settings page</figcaption></figure>
<p> </p>
<h3>General options overview:</h3>
<ul>
<li>Enable/Disable additional fees for entire website without removing data</li>
<li>Enable additional fees for a single gateway or a single product</li>
<li>Automatic calculation of fees for each gateway or each product</li>
<li>Change the automatically calculated fee on the order page</li>
<li>Option to manually add a fee to an order, after the user completes checkout</li>
<li>Option to manually add a fee to orders you create on the admin page</li>
<li>Define a maximum and/or minimum limit to which a fee is added at the cart level</li>
<li>Define a maximum and/or minimum fee value to add</li>
<li>Exclude fees for defined customer E-Mails</li>
<li>Define a maximum limit to which a fee is added for a product</li>
<li>Tax calculation for additional fees is also supported</li>
<li>Three calculation methods:
<ol>
<li>“Fixed amount”: Adds a fixed amount</li>
<li>“add % to total amount”: Adds a percentage depending on the total amount of the product price or order total</li>
<li>“include % in total amount”: The fee is calculated as a commission rate (you will be payed the total amount of the order)</li>
</ol>
</li>
<li>WPML compatible – fee caption/title can be translated (requires WPML 4.2.8 or later)</li>
<li>Since version 5.0 WooCommerce Block Checkout is supported</li>
<li><strong>Since version 5.2 in active beta</strong> support for automated taxes when using plugin <a href="https://woocommerce.com/products/tax/" target="_blank" rel="noopener">WooCommerce Tax (WooCommerce Shipping & Tax)</a> – version 2.8.8 or higher.</li>
</ul>
<p>The Payment Gateway Based Fees extension is currently not compatible with the automated taxes service of the Jetpack plugin (except when using version 5.2 or higher with WooCommerce Tax plugin 2.8.8 or higher). Please select “Disable automated taxes” (Tax tab) on the WooCommerce settings page. We will support this feature as soon as 3rd party plugins can hook into the automated tax calculation.</p>

Payment Gateway Based Fees

<p>Add fees to orders based on the selected payment method</p>

Anti-Fraud vs Payment Gateway Based Fees