How to Identify and Block High-Risk Users in WooCommerce

As eCommerce continues to grow, so do the risks, especially for WooCommerce store owners. From fraudulent transactions to fake accounts, the threats are becoming more frequent and sophisticated. Without proper protections in place, these high-risk users can drain revenue, waste resources, and damage your store’s reputation.

That’s why it’s critical to identify and block high-risk users in WooCommerce early in the process. Doing so helps protect your store, streamline operations, and maintain customer trust.

The goal of this article is simple: to show you how to detect high-risk users in WooCommerce and implement automated strategies to block high-risk users in WooCommerce before they cause harm.

What is a High-Risk User in WooCommerce?

A high-risk user is someone who poses a strong likelihood of committing fraud or abusing your store’s features. These users may exploit vulnerabilities to steal, scam, or disrupt your operations.

Common Examples of High-Risk Users:

• Users with fake or stolen payment details — leading to chargebacks and loss of revenue.

• Customers are abusing return or refund policies by making false claims or exploiting loopholes.

• Bots that create fake accounts or place spam orders, adding strain to your system and skewing analytics.

• Repeat offenders using known blacklisted information, such as flagged IPs, emails, or phone numbers.

Common Signs of High-Risk Behavior

Detecting high-risk users early starts with recognising the warning signs. While some behaviors may seem harmless in isolation, patterns often reveal fraudulent intent. Here are the most common red flags to watch for in your WooCommerce store:

• Multiple Failed Login or Checkout Attempts
  Repeated login failures or unsuccessful payment attempts may indicate bot activity or someone testing stolen credentials.

• Mismatched Billing and Shipping Addresses
  Orders where the billing and shipping details don’t align—especially across different countries—can signal potential fraud.

• Suspicious Email Domains
  Temporary or disposable email addresses (e.g., *@tempmail.com, *@mailinator.com) are commonly used by fraudsters to avoid detection and bypass account verification.

• Known Blacklisted IPs or Countries
  Orders originating from flagged IP addresses or high-risk regions are often linked to scams, fraud rings, or automated attacks. Blocking users by IP address can help reduce this threat.

• Unusually Large or Repeated Orders
  Large-value orders placed without a purchase history—or multiple identical orders in a short timeframe—can be signs of account compromise or payment fraud.

• Abnormal Customer Behavior
  Activities such as placing many low-value “test” orders or rapidly switching addresses and payment methods are strong indicators of automated fraud attempts or system probing.

Identifying these behaviors early allows you to take preventive action before a fraudulent order impacts your revenue or reputation.

Tools and Techniques to Identify High-Risk Users

To protect your WooCommerce store from fraud, you need more than just intuition—you need the right tools. Combining automated systems with manual checks can help you identify and block high-risk users before they cause damage.

1. Fraud Scoring Systems

Plugins like FraudLabs Pro, WooCommerce Anti-Fraud, and similar tools analyse each order using fraud scoring. They assess factors such as IP address, email domain, billing/shipping mismatch, and more, then assign a risk score to help you decide whether to accept, review, or reject the order.

2. Behavior Monitoring

Tracking user behavior—such as failed login attempts, unusual cart activity, or multiple sessions from the same IP—can uncover suspicious patterns early. Many security plugins offer dashboards or logs to monitor this behavior in real-time.

3. IP Geolocation and VPN/Proxy Detection

Fraudsters often hide behind VPNs or proxies to disguise their location. Using geolocation tools helps detect when orders originate from unexpected or high-risk regions. This data can be used to trigger alerts or automatic blocks.

4. Email and Phone Validation Tools

Temporary and disposable emails are a red flag. Use validation tools that check the email domain reputation or block known temporary domains. For guidance on email blocking, refer to this step-by-step guide on blocking email addresses in WooCommerce. Similarly, validating phone numbers—especially international or non-mobile ones—can also filter out risky users.

5. Manual Order Review and Pattern Recognition

Sometimes, human intuition catches what automation misses. Reviewing high-risk orders manually and identifying patterns—such as repeat offenses or frequent address changes—can help you refine your fraud detection rules over time.

How to Block High-Risk Users in WooCommerce

When running a WooCommerce store, identifying high-risk users is only half the battle—blocking them effectively is what truly protects your revenue and operations. One of the most reliable ways to do this is by using a dedicated security plugin like Aelia Blacklister for WooCommerce, which enables precise and flexible blacklisting based on user behavior and data.

Why Use Aelia Blacklister?

Aelia Blacklister helps WooCommerce store owners proactively block fraudulent customers before they can complete an order. It allows you to blacklist users based on IP addresses, email addresses, phone numbers, physical addresses, and even names, using both exact and partial matches. You can stop fake orders, prevent abuse of return policies, and block suspicious users at checkout.

How to Configure Aelia Blacklister Plugin

Setting up Aelia Blacklister for WooCommerce is simple and intuitive, even for non-technical users. Here’s a step-by-step guide:

Step 1: Download and Install the Aelia Blacklister Plugin

Part 1: Download the Plugin

• Visit the Official Aelia Website
  Head to aelia.co and navigate to the Aelia Blacklister plugin page to get the most recent and secure version.

• Purchase or Access the Plugin
  If the plugin is paid, complete your purchase to access the download link.

• Download the ZIP Archive
  Click the Download button to save the plugin ZIP file to your computer. This file contains everything needed for installation.

Part 2: Upload the Plugin to Your WordPress Site

• Log in to WordPress Admin
  Access your WordPress admin dashboard.

• Go to Plugins > Add New
  From the left-hand menu, hover over Plugins, then click Add New.

• Click ‘Upload Plugin’
  At the top of the page, click the Upload Plugin button.

• Select the ZIP File
  Click Choose File, locate the downloaded Aelia Blacklister ZIP file, and select it.

• Install the Plugin
  Click Install Now to upload and install the plugin.

Part 3: Activate the Plugin

• Wait for Installation to Finish
  Once installed, WordPress will show a confirmation message.

• Activate the Plugin
  Click Activate Plugin to enable Aelia Blacklister.

• Verify Activation
  After activation, you’ll find the plugin listed under active plugins and see a new settings section in WooCommerce > Aelia Blacklister.

Step 2: Configure Blocking Rules in Aelia Blacklister

Now that the plugin is installed, it’s time to configure your blacklist rules to stop high-risk users from placing orders.

1. Block by Name and Surname

How to Block:

Go to the blacklist settings and input the full names, first names, or surnames you wish to block.

Why It Matters:
Fraudsters may change emails or IPs, but often reuse the same names. Blocking by name helps catch repeat offenders.

Steps:

• Open the Blacklist Customer section.

• Add names to the blacklist.

• Click Save Changes.

2. Block by Address (Street, Postcode, City, State, Country)

How to Block:

Target specific address components like street name, postal code, or country.

Why It Matters:
Fake or stolen addresses from high-risk regions are often reused by fraudsters.

Steps:

• Navigate to the Address section.

• Enter full or partial addresses.

• Choose blocking levels (e.g., region, postcode).

• Click Save.

3. Block by Email Address

How to Block:

Enter full email addresses or entire domains (e.g., *@tempmail.com).

Why It Matters:
Disposable and fake emails are commonly used to bypass security.

Steps:

• Go to the Email Address field.

• Add the emails or domains.

• Save the settings.

4. Block by Phone Number

How to Block:

Input full numbers or area codes commonly linked to fraud.

Why It Matters:
Fake or stolen phone numbers are often tied to suspicious orders.

Steps:

• Go to the Phone Number section.

• Add the numbers or codes.

• Save the configuration.

5. Block by IP Address

How to Block:

Use exact IPs, wildcards (e.g., 192.168.*.*), or regex to match patterns.

Why It Matters:
Fraudsters may return under the same IP or a known range. Blocking IPs prevents repeat access.

Steps:

• Access the IP Address section.

• Enter specific IPs or ranges.

• Apply regex patterns for advanced control.

• Click Save.

Final Step: Save and Activate Your Rules

After adding all your blocking criteria, ensure you click Save or Update in the plugin settings.
Regularly reviewing and updating your blacklist will help you stay ahead of new fraud attempts.

Enhance Your Store Security with Complementary Tools

While Aelia Blacklister offers robust blocking capabilities to protect your WooCommerce store from fraudulent orders, you can take your store’s security and overall performance even further by integrating additional solutions from Aelia.

For example, the Prices by Country for WooCommerce plugin is a powerful companion tool. It enables you to display tailored pricing based on the visitor’s location, simplifying international sales management and reducing risks associated with currency fluctuations or regional pricing abuses. Combining these tools helps you create a safer, smarter, and more efficient WooCommerce store.