magento 2 customer registration spam

Have you noticed a sudden surge of new customer accounts in your Magento store with suspicious or random email addresses? Well, your store is most likely dealing with customer registration spam. It can become a serious problem, leading to other Magento security issues  and vulnerabilities . 

In this guide, you'll learn what Magento 2 customer registration spam is, why it is dangerous, and how to prevent it in your store.

Key takeaways
  • Magento 2 registration spam is caused by automated bots that submit account registration forms in large volumes within a short period of time.
  • The common signs of registration spam are a sudden increase in new accounts, the use of fake emails, repeated registrations from the same IP, and no account activity afterwards.
  • Default Magento CAPTCHA and email confirmation help prevent registration spam, partially.
  • To prevent registration spam in Magento, use Magefan Magento 2 Security extension that blocks disposable or suspicious email domains right at the registration.

What Is Magento 2 Customer Registration Spam?

Magento customer registration spam is a security issue caused by automated tools, called bots that create fake user accounts in online stores using fraudulent email addresses. They are designed to fill out registration forms in seconds, thus creating thousands of bot users.

Their task is to overload a website and take advantage of it in many different ways.

How Registration Spam Harms Magento Stores?

Registration spam, is left unchecked, can hurt website performance, increase expenses, or open the door to further abuse and here is how:

Slows down the website

Multiple bot registration requests submitted at the same time overload the system. As a result, customers experience slow page loading or get errors during checkout.

Increases server load

Every fake customer registration uses server resources. So if the number of bots is high, submitting thousands of forms per minute, it can lead to additional costs for extra server storage.

Creates security risks

If bots register easily, it's usually a sign that the store is not well-protected. And even though registration spam is not a direct breach, hackers can use it to carry out more advanced attacks.

This is why store owners need to know what Magento registration spam looks like and how to deal with it.

Common Signs of Fake Customer Registrations in Magento

There are a lot of signs that help to identify Magento 2 customer registration spam.

Sign Description Example
Unusual rise in new accounts A store gets more new accounts than usual A store has around 100-2000+ new accounts within a day or a few hours
Many accounts created within minutes Bots often register new accounts in a short time span 25 new accounts appear within 5 minutes
Suspicious user names Bots use meaningless autogenerated user names with random numbers and letters test466, user0008, abc1211, joe35343
Temporary email addresses Bots often use disposable email services to avoid tracking @ fastsubaru.com, @mailnator.com, @fastmazda.com
No orders or activity after registration Bots never make purchases or log in after registration No login history, no orders, no browsing history
Same IP addresses Bots generally use a single IP address to register multiple accounts 30 accounts from the same IP in a short time
Unexpected countries Users create accounts from countries where the store doesn't sell A local EU store gets many signups from unrelated countries
Sudden newsletter signups Multiple users subscribe to the newsletter at once 100 subscribers added in one hour with no campaign running

Once you detect spam registrations, it's important to act quickly. The first step is to block suspicious accounts to prevent further abuse.

But it's best to restrict fake registration in Magento to avoid unnecessary work of eliminating fake accounts.

How to Block Registration Spam in Magento?

There are two ways to restrict fake registration in Magento: block fraudulent email domains or block certain IPs.

Block email domains

The easiest and quickest way to stop registration spam is to block suspicious email domains. This can be done directly from the admin panel using the Magefan Magento 2 Security .

Magefan security tool provides a special Fraudulent Email Domains option where merchants can blacklist the email domains.

Moreover, since bots often use temporary email services (fakemailgenerator.com, hidemail.de, tempmail.com, etc.), it's recommended to add these domains to the blocklist as well.

magento temporary registration email addresses block in magefan extension

Restricting suspicious email domains using the Magefan Security extension for Magento

This way, Magento will automatically block any registration attempts coming from the listed offenders.

Block IP addresses

Another way to stop customer registration spam in Magento is to block suspicious IP addresses at the server level. Depending on the hosting, merchants can either deny access for specific IPs or add rules to server configuration files.

Alternatively, they can use services like Cloudflare, which can detect and ban suspicious traffic before it reaches a store.

How to Prevent Customer Registration Spam in Magento?

Preventing registration spam in Magento is about identifying humans from bots in real time and preventing bots from creating accounts. Magento provides default options for that.

Enable CAPTCHA or Google reCAPTCHA

If you enable Magento CAPTCHA or Google reCAPTCHA, users will need to type characters, select images, or check the "I'm not a bot" box to register an account. This helps to reduce registration spam.

The default Magento registration CAPTCHA is quite basic.

magento 2 captcha on the registration form

Magento 2  account registration form with default CAPTCHA

For better security and user experience, it's recommended to configure Google reCAPTCHA V3 or V2. It can be added without additional tools, since Magento supports built-in integration.

google recaptcha in magento registration form

Magento 2 account registration form with Google reCAPTCHA

Require email confirmation

The second default option is to configure an email confirmation in the new Magento customer accounts options. This way, users receive a confirmation account link, which they need to click to activate the account.

Since bots usually can't complete this step, they won't be able to finish registration and spam your store.

magento new account email confirmation

Magento account email confirmation settings

The above methods can help reduce registration spam. Yet, they don't provide full registration protection, especially when used separately. Some bots can bypass even these setups. 

Therefore, store owners refer to third-party solutions to add extra layers of security.

Enable social media verification

Another approach to reduce spam customer registration is to make users sign up through their social media accounts (Facebook, Instagram, Google). 

Since these platforms require an identity check, it becomes difficult for bots to continue registration. Besides, this method helps people register quickly, since they don't need to fill out long forms.

Use the honeypot method

The so-called honeypot method is a smart security step to identify spam users by providing a hidden custom field in the registration form.

Since bots try to fill in all the available fields, they will also complete the ones people can't see. And this is how the system catches and blocks them. However, this method requires a third-party extension as well.

Best Practices to Keep Magento Registration Spam Away

Reducing Magento 2 registration spam starts with a routine based on simple yet effective rules for customer registration.

Review customer registration activity

Monitor new account registrations in your admin panel to keep track of your normal signup activity.

This allows you to see any unusual spikes in registration and detect bot attacks.

Check new accounts

Bots generally create accounts in bulk using the same pattern. Review recent registrations regularly to spot similar formats or identical IPs.

Clean the database regularly

Delete inactive and suspicious accounts. This keeps your database accurate and reduces unnecessary server load. 

Keep Magento updated

Since outdated systems are an easy target for bot attacks, download Magento latest version. Updates include new security patches that fix known vulnerabilities and reduce the risk of bots bypassing your store protection.

Combine multiple security methods

Do not rely on one protection approach. Combine multiple layers of security since registration bots keep improving. If one layer fails, another can still stop them.

However, Magento 2 registration spam is only one of many security risks your store may face.

To fully secure your website, data, and customers, follow additional Magento security tips  and best practices that cover all areas of your website.

FAQs

How to enable account registration CAPTCHA in Magento 2?
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To enable default Magento registration CAPTCHA, go to Stores > Configuration > Customers > Customer Configuration > CAPTCHA and choose theCreate user in the Forms tab.
How to stop spam customers in Magento?
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To avoid spam customers in Magento, block fake email addresses from registering through Magefan Security Extension.
Why CAPTCHA not stopping fake email registration in Magento?
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Magento CAPTCHA or Google reCAPTCHA might not always stop fake email registration because:

  • 1. It is not properly integrated in your customer or third-party theme.
  • 2. The form key validation is disabled in your backed or is bypassed by a custom API/extension.
  • 3. Advanced bots make direct HTTP POST requests to the form action URL without actually loading your frontend registration form (and CAPTCHA with it).
How to delete fake customer accounts in Magento?
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To delete fake customer account you must first identify the fake email addresses they were registered with. Then filter customers by that email in the Customer grid and delete them via mass actions.