WordPress Security Checklist: A Complete and Practical Guide to Safeguard Your Website

Running your website on WordPress is exciting, but if you don’t secure it, you risk losing everything overnight.

Surprisingly, these hacks aren’t the work of expert hackers. They are mostly break-ins caused by outdated plugins, weak passwords, and missing security layers, and they can be resolved in minutes. The good news is that with a simple checklist and a couple of hours of work, you can easily prevent the most common attacks and reduce your risk.

This article walks you through what to do, why it matters, and how to fix it quickly. Let’s secure your website before it becomes another statistic.

Why Does WordPress Security Matter?

WordPress powers over 40% of all websites on the internet. This makes it a prime target for hackers. They know that many WordPress websites do not implement proper security measures. This makes it easier for them to find and exploit vulnerabilities. When a hacker gets into your website, they can steal customer data, install malware, damage your reputation, and even use your website to attack other websites.

A security breach can cost thousands of dollars in recovery expenses and result in lost trust from the audience. Search engines like Google may flag your website as unsafe and remove it from search results. Further, your organic traffic drops to zero. Your customers might see warning messages, and are likely to take their business elsewhere. Along with that, reputational damage makes website security non-negotiable.

Security breaches do not only happen to big companies. They can happen to anyone who is not proactive about protection. Most common attacks are preventable with the right practices. By implementing the security measures in this guide, you can close the doors that hackers typically use to break in.

The Complete 24-Step WordPress Security Checklist

1. Use a Secure Web Host

Security starts with your hosting provider. Even with perfect WordPress settings, a weak host cannot be fixed.

Look for a host that offers:

• Regular server-level security updates.
• Firewalls and malware scanning.
• DDoS protection.
• Automatic backups.
• Support for SFTP/FTPS and SSH.

If your host is slow to respond to security issues or experiences frequent breaches, consider moving. A secure host is the foundation of your WordPress website security. Some hosting providers are better at security than others. Managed WordPress hosting services handle security updates and monitoring automatically.

2. Update WordPress Core Software

WordPress releases updates regularly to fix security issues and introduce new features. Every available update should be installed as soon as possible.

You should enable automatic major updates for WordPress core. For that, go to your WordPress dashboard. Then, go to Settings > Updates (or Dashboard > Plugins > Plugin File Editor on older versions), and enable automatic updates. Alternatively, you can manually check for updates by going to Dashboard > Updates.

Security updates should be treated as urgent. Make it a habit to check for updates every Monday morning so nothing gets overlooked.

3. Update and Maintain Themes and Plugins

Outdated themes and plugins are a major attack vector. Every plugin and theme you install should be kept up to date with the latest security patches and bug fixes.

Action steps:

1. Go to Dashboard → Updates.
2. Update all active themes and plugins.
3. Set automatic updates for trusted plugins and themes.
4. Check changelogs for any important security fixes.

Do this weekly at least. For high-traffic or eCommerce websites, do it even more often.

Be selective about which plugins and themes you install in the first place. Not all developers maintain their code, so download only from the official WordPress repository or trusted developers.

4. Remove Unnecessary Themes and Plugins

Perform an audit of your website and delete every plugin and theme that you are not actively using.

Action steps:

1. Deactivate and delete themes and plugins you do not use.
2. Keep only one default backup theme plus your main theme.
3. Periodically review your plugin list and remove tools you no longer need.

Go to Plugins > All Plugins and look for deactivated items. Click the delete button for anything that is not in use. Repeat the same process for themes in Appearance > Themes.

This practice reduces the number of potential vulnerabilities. A lean website is easier to build, secure, and maintain.

5. Install an SSL Certificate

SSL encrypts data between your website and visitors. This protects login details, forms, personal information, and user accounts.

Action steps:

1. Enable HTTPS with a valid SSL/TLS certificate.
2. Force HTTPS via your hosting panel or .htaccess rules, or use Let’s Encrypt.
3. Update your WordPress and site address under Settings → General to use https://.
4. Check every internal link on your website to ensure it is using HTTPS.
5. Some older content may have mixed HTTP and HTTPS links, which can trigger warning messages.

A secure WordPress website setup with HTTPS also helps SEO and builds user trust.

Most modern hosting providers offer free SSL certificates. Go to your hosting control panel and look for the SSL/TLS option. Click “Manage” and request a free certificate for your domain. The process is usually automatic and takes just a few minutes.

6. Install a WordPress Security Plugin

A good security plugin acts as a protective layer for your WordPress website. It monitors for threats, scans for malware, hardens your configuration, and blocks suspicious activity.

Popular security plugins like Sucuri and Wordfence come with:

• Firewall rules.
• Malware scanning.
• Login protection.
• File integrity monitoring.
• Alerts and reports.

When choosing a security plugin, see one that provides detailed activity logs. A good security plugin also centralizes many security tasks for WordPress. Pick one reputable plugin and configure it. Avoid stacking multiple security plugins, as they may conflict. See common reasons and fixes if you need help installing a plugin in WordPress.

7. Use Spam Protection

Spam comments and form submissions are not only annoying. They can also carry malicious links and scripts.

Action steps:

1. Enable a spam protection plugin or service.
2. Use CAPTCHA or honeypots on forms.
3. Disable comments on posts where they are not needed.

This keeps your content and users safer while reducing cleanup work.

8. Create Strong Credentials for WordPress Admin

Weak or default usernames and passwords make it easy for hackers to gain access to the backend.

Start by changing the default admin username. Go to Users > All Users, select the Administrator user, and change their username to a unique, unpredictable name. Never use obvious usernames like administrator, webmaster, or your name.

For passwords, create a complex one with at least 16 characters that includes uppercase and lowercase letters, numbers, and special characters. Use a password manager to generate and store these passwords. Avoid reusing passwords on other websites, because if one service gets hacked, all your accounts are at risk.

Good credentials are the first layer of security for WordPress websites.

9. Set Proper Permissions on Critical Files

File permissions control who can read, write, and execute files on your server. Incorrect file permissions can allow attackers to edit or upload files.

General guidelines are:

• Files: 644
• Folders: 755

Files like wp-config.php may need stricter permissions. For example, 600 or 640, depending on the server. Ask your host or follow their documentation for the safest setup.

To change permissions, use the hosting control panel file manager or connect via SFTP (Secure File Transfer Protocol). Right-click on a file or folder, select Properties or Permissions, and change the numbers.

10. Enable Two-Factor Authentication (2FA)

Two-factor authentication enhances security by requiring a second verification method in addition to a password. Even if a password is stolen, unauthorized access is prevented without the second factor.

Install a two-factor authentication plugin. After installation, go to Settings > Two-Factor, and enable it for all Administrator accounts.

The most common second factor is a time-based code generated by an authenticator app on your phone. When you log in to WordPress, you enter your password, and then the six-digit code from your authenticator app. This code changes every 30 seconds. Another method is getting an email verification code that is valid for a few minutes.

This single step improves WordPress security.

11. Back Up Your Website Regularly

Backups are your safety net. If your website gets hacked, you can restore it quickly.

Action steps:

1. Use a backup plugin or host-level backup.
2. Schedule automatic daily or weekly backups, depending on how often your website changes.
3. Store backups offsite in cloud storage or on a remote server, not only on the same host.
4. Test your backups regularly by restoring them to a staging environment.

A backup that cannot be restored is worthless, so verify that your recovery process actually works. Document your backup and recovery procedures so you can act quickly if needed.

12. Regularly Scan for Malware

Malware scanning should be part of your regular maintenance routine. These scans catch infections early before they cause damage.

Most security plugins, such as MalCare, include malware-scanning functionality. Configure your plugin to scan automatically on a daily or weekly schedule. When a scan finds malware, the plugin will give options to quarantine or remove the threat.

In addition to automated scans, use online scanner tools to get a second opinion. These tools scan your website from external servers and can sometimes catch threats that your local scanner might miss. Run a scan at least once monthly.

13. Use a Web Application Firewall (WAF)

A WAF filters malicious traffic before it reaches your website.

Benefits:

• Blocks common attack patterns (SQL injection, XSS, etc.).
• Reduces brute-force attempts.
• Adds an extra layer in front of WordPress.

You can use a plugin-based WAF or a cloud WAF from your host or a security provider.

Setting up a Web Application Firewall (WAF) is straightforward. You have two options: you can either update your DNS records to direct traffic to the firewall service, or you can use your security plugin to manage the setup for you. Once the WAF is active, you can view reports on blocked threats and adjust the firewall rules as needed.

14. Use a Content Delivery Network (CDN) for DDoS Protection

A Content Delivery Network (CDN) stores copies of the website files on servers around the world. When someone visits your website, they get content from the server closest to them. This gives fast loading speeds.

As a bonus, many CDN providers, such as Cloudflare, offer DDoS (Distributed Denial of Service) protection. If hackers attempt to attack your website with traffic, the CDN absorbs the attack and sends only legitimate traffic to your server.

15. Assign Proper User Roles

Not everyone needs admin access. Too many admins increase the risk of a breach.

Action steps:

1. Give users the lowest role they need, such as Subscriber, Contributor, Author, Editor, or Admin.
2. Regularly review user accounts and remove old ones.
3. Avoid sharing admin logins.

Good role management is an important part of WordPress security best practices.

WordPress has different user roles with different permission levels. Admin accounts should only be used by trusted people who actually need full access.

Go to Users > All Users and review each account. Most team members can perform their jobs with the Editor or Author roles instead of the Admin role. Change permissions by clicking the user’s name and selecting a Role from the dropdown.

Remove accounts for people who no longer work with you. Old user accounts are potential security weak points, so delete them.

16. Use a Custom URL for the Login Page

The standard WordPress login page is located at xyz.com/wp-login.php. Hackers know this default location and try to access it. Changing your login URL to a custom one stops most attacks. 

Security plugins like AIOS let you change your login URL to anything you want, such as xyz.com/secret-admin-area/ or xyz.com/my-custom-login/. When someone tries to access wp-login.php with your custom URL active, they get a 404error instead.

Action steps:

1. Use a plugin to change the login URL to a unique one.
2. Do not use very obvious alternatives such as/login or /admin.

Choose a URL that is difficult to guess but easy for you to remember. This reduces generic bot attacks.

17. Disable Error Reporting

On a live website, errors can reveal file paths, server details, or even code. Attackers can use this information.

Action steps:

1. Turn off PHP error display in wp-config.php and server settings.
2. Log errors to a secure log file rather than displaying them to visitors.
3. Keep detailed information only where you, not attackers, can see it.

By default, WordPress displays error messages when issues occur. These messages can expose sensitive information about your site’s structure, database, and file paths, which hackers might exploit.

To disable error reporting, set it to `false`. Then add these lines below it:

define( ‘WP_DEBUG_LOG’, false );

define( ‘WP_DEBUG_DISPLAY’, false );

This hides all error messages from visitors.

18. Turn Off File Editing

Admin users can edit theme and plugin files in WordPress from the dashboard. If an attacker ever gets admin access, it becomes easy to inject code.

Disable the built-in file editor via wp-config.php (for example, using DISALLOW_FILE_EDIT).

This forces all code changes to go through proper deployment workflows. After adding this line, the Theme File Editor and Plugin File Editor options disappear from the WordPress dashboard. Check out our blog on restricting editor in WordPress to know more about this in detail.

19. Disable PHP File Execution in Directories

Some WordPress directories should never execute PHP files. By preventing PHP execution in directories such as /wp-content/uploads/, you stop attackers from executing malicious scripts even if they upload them.

Use .htaccess or server rules to block PHP execution in these directories.

Repeat this process for any other directories where PHP shouldn’t execute, such as /wp-content/plugins/, /wp-content/themes/, and /wp-includes/. Your security plugin can usually do this automatically. 

Try seeking full-stack development services to implement all these steps once and for all.

20. Disable Directory Browsing

If directory browsing is enabled, visitors can see a list of files in folders without index files. This reveals information about your website structure that hackers can use to plan attacks.

The action step is to disable directory listing via .htaccess or server configuration.

After making this change, when someone tries to access a directory without an index file, they will see an error instead of a file listing. This keeps your file structure private.

21. Change the Default WordPress Database Prefix

By default, WordPress tables use the wp_ prefix.

Attackers often assume this. During installation, set a custom table prefix instead of wp_.

On existing websites, this change is more complex. So it should be done carefully (or by a professional) to avoid breaking the website.

This change only works during initial WordPress installation, so it is too late to implement if your website is already live. If you have an existing website, contact your hosting provider or use a database migration tool to change all table prefixes.

22. Use a VPN to Access the Admin Page on Public Networks

Public Wi-Fi is risky. Attackers can attempt to intercept traffic.

Action steps:

1. Avoid logging into /wp-admin on open/public networks.
2. If you must, use a trusted VPN.
3. Prefer your own secure network whenever possible.

This keeps your credentials and sessions safer when traveling or working remotely.

23. Use Secure File Transfer Protocols

Plain FTP sends usernames and passwords in clear text. This is easy to sniff on insecure networks.

Action steps:

1. Use SFTP or FTPS for all file transfers.
2. Disable plain FTP if your host enables it.
3. Use strong, unique credentials for these accounts as well.

This guarantees your access to server files remains protected.

FTP transmits usernames and passwords in plain text. So anyone monitoring your network traffic can intercept your login credentials. Use an SFTP (Secure File Transfer Protocol) client such as FileZilla that encrypts all data and passwords.

Never use plain FTP under any circumstances, especially not from public WiFi networks.

24. Restrict Access to Critical Files

These files control core behavior and configuration. If they are exposed, attackers gain powerful control.

Action steps:

1. Use file permissions and server rules to restrict direct access.
2. Block web access to wp-config.php and, if appropriate, to .htaccess.
3. Store sensitive information securely and avoid exposing it through errors.
4. This protects the heart of your WordPress installation.

Restricting access to these files ensures only authorized people can view or modify them.

Final Thoughts

WordPress security is not complicated if you apply it one step at a time. The 24 steps covered in this guide address the most common vulnerabilities and attacks. Start securing your site with these steps, as they can all be completed in a single sitting. Consult a professional WordPress development company if you need help implementing security.

The investment you make in security now helps prevent breaches later. Your website represents your business online, so protecting it should be a top priority. Start implementing these security measures today. Begin with the basics and work your way through the checklist. Most WordPress owners can secure their entire site within a week by following this guide.

Remember that security is an ongoing process. Stay informed about new threats and monitor your site regularly. With these practices, your WordPress website will be much safer and more resilient to attacks.

FAQs on WordPress Security Checklist