WordPress Virtual Hardening & Security Firewall [GUIDE]

WordPress Virtual Hardening & WAF

Virtual Hardening WordPress

Table Of Contents:
? What is Virtual Hardening for websites?
? What is Web Application Firewall(WAF)?
? How does a Web Application Firewall(WAF) work?
? What’s the relation between WAF and Virtual Hardening?
? What needs to be protected?
? Few Basic Hardening tips to ensure the security of your WordPress

WordPress security is the topmost concern for site owners. It may be noted that approx. 28% of the websites in the internet are powered by WordPress due to the popular CMS and therefore often the main target by hackers. This in any case does not mean that your website has to fall victim to all the malicious activities.

To reduce the chances of being the victim to any online attack read below for a few important security tasks you must implement to become more secure against potential threats. Virtual hardening and Web Application Firewall (WAF) can perfectly help get you into action by securing your overall WordPress website.

? What is Virtual Hardening for WordPress Websites?

What is Virtual Hardening for Websites?

Web Security is not a complete term in itself instead it is a continuous process that needs to be managed perfectly. Website Security can be referred as risk reduction, not risk elimination. It is all about having the perfect security controls or tools that can refrain your site from further attacks or malicious threats.

With a numerous amount of WordPress security risks, it is important to protect your site. In order to make your WordPress more secure, safe and robust you need to have hardening. To harden your WordPress site typically means to add an ample amount of protective layers to reduce the risk of attack by the hackers.

To harden your Website virtually includes WAF i.e Web Application Firewall or WordPress security plugins to harden the site automatically. Hardening is a part of a security strategy that accounts for the protection of your web database and web servers from vulnerability issues.

?What is a Web Application Firewall (WAF)?

What is Web Application Firewall(WAF)?

WAF is Web Application Firewall, an online security solution that typically acts as a barrier between your website and the traffic. It filters out bad HTTP traffic. One of the most effective solutions for the detection of threats by the incoming HTTP requests before reaching the server. WAF basically analyzes and seizes the malicious attacks on your WordPress website that may have slipped by other security solutions.

WAF keeps the hackers away from your website to turn it into much more secure and robust functioning. In order to explain WAF in a crisp way, we would also like to quote an example for better understanding. Consider your website as your own house and malicious attacks or hackers the people on the streets who want to visit your house.

There are few friends and family members for whom you want to open your house door but you cannot as bad people are also there so what you do is just save yourselves from the bad people similarly in the case of websites WAF acts as a barrier between the traffic and website.

?How does a WordPress security firewall work?

How does a Web Application Firewall work?

WAF works as a preventive measure taken to secure your website from any malicious attacks or hackers. It works as a vaccine for a WordPress website. Having WAF activated for your website means you have already taken a proactive measure to prevent your site from the hackers.

There are few specific application firewalls for the websites and mainly called as Website Application Firewalls (WAFs). A vital firewall solution to protect any website as they acts as a barrier between the traffic and your website. WAF’s main goal is to obstruct the malicious requests harming your website.

It is deployed as a hardware appliance, server plugin or the inline web server that runs directly on the servers. It intercepts and analyzes all HTTP requests before they reach the web server.

Depending on the WAF options selected, WAF can ask the user to input captcha, block the traffic or instruct the servers to stimulate the attacks. These challenging and blocking options filters out the legitimate traffic.

Wordpres firewall Based on 3 security models:

  • Blacklist or negative security model – Uses generic signatures to protect the website against known attacks and specific signatures to prevent attacks that can usually exploit vulnerabilities in the web application.
  • Whitelist or positive security model – Uses signatures and at times various additional logic to only permit traffic that meets certain criteria. Example: Allowing only HTTP GET requests from a specific URL and blocking everything else.
  • Hybrid security model – This applies both the negative and positive models.

Some of the security options by WAF may also include blocking the user, blocking a specific IP, blocking the sessions, logging out the user and more.

?Firewall and WordPress Virtual Hardening?

WAF & Virtual Hardening

To be more precise Virtual Hardening and WAF are connected to each other as they both serve the security of your WordPress websites. Layers of protection are added to secure the website.  We will discuss about the security to help you understand in a better way:

In order to harden your website, below listed are few tips that won’t let you compromise with your WordPress security:

  • Always keep your Content management system and extensions updated.
  • Do not forget to install various security patches to your CMS and extensions. – See WordPress Security Releases.
  • Monitor your website regularly. – Pingdom
  • Keep up with its log activity.
  • Install a firewall on the device you use to access your website.
  • Have unique, and complex passwords.
  • Remove unwanted plugins and extensions from your website.
  • Use 2FA whenever possible. – Adding WordPress Two-Factor Authentication
  • Install a Website Application Firewall (WAF).

?Further Reading – Identify if WordPress is Hacked? Follow These Tips

What needs to be protected?

It’s just not the basic files and the website that needs to be protected its the overall user’s data that needs protection. WordPress MySQL data is basically backend and stores the entire data. The main concern must be to get your customer’s data to be protected. There may be many cases that if your website is insecure and gets hacked at the same time, the data is almost impossible to recover by any means. It would be definitely a disastrous concern if hacker is able to collect the user data and gain admin access.

Virtual Hardening is performed at many levels:

  • The operating system
  • The web server
  • The Application
  • The database

Website Content Management System Level:

As you all know each environment is unique in its own way. For WordPress platform below listed tips can help you to add security to your website.

Web Servers Level:

Adding security to the servers can be a challenging task. You will need to know about the server you are running on. This, as already mentioned virtual hardening goes beyond the platform into the web server that includes:

?Further Reading – 6 Most Common Reasons For Website Hacking & How to Prevent Them

?Basic Tips To Harden WordPress Security

 Few Basic Tips To Harden WordPress Security


✅Disable theme editor/plugins:

Disable theme editors/plugins. In case you have figured out that someone knows your password is P@ssword just focus yourselves on how to minimize the impact of the security compromise.

Two specific constants that help you reduce the impact:


– or –


✅Secure Communication:

There may be many of them who still struggle with SSH and FTP.  Firstly, let’s familiarize with various communication systems available for you:

  • File Transfer Protocol (FTP) – Transmits in the clear
  • File Transfer Protocol Secure (FTPs) – Supports Transport Layer Security/Secure Socket Layer cryptographic protocols –encrypts your communication
  • Secure FTP (SFTP) – Allows you to tunnel to the server via a SSH connection
  • Secure Shell (SSH) – Builds a secure connection with the server allowing you to communicate securely

When presented with the option, enable SFTP. The ideal connection is a combination of SFTP and SSH.

✅Protect HTACCESS:

A critical file that is often used to change the various file types to make them executable. Used to harden the environment.

  • Set low permissions: Lower the number, harder the access. Keep the number as low as possible. For most users, restricting it to 640 can set the goal right.[See – Recommended WordPress File Permissions]
  • Deny Access: Add .HTACCESS Directives. This only works if the attack is external.
    • You can use this .htaccess directive:



Order Deny,Allow

Deny from All


Also ReadHow to cleanup hacked .htaccess?


This should be discussed but it is left alone. One of the best approach is to disable remote execution of any PHP files. It is obvious that we turn to .HTACCESS to help us. Using the following you are able to easily block the execution of any PHP files that are within the WP-CONTENT directories.

Please use at your own risk, depending on the the plugins or themes you have developed or selected  as it could break your site.

<FilesMatch .php>

Order Deny,Allow

Deny from All


✅Lock Down Important Files via Subdomain or IP:

It is highly recommended to lock down the access as you might have heard about the importance of blocking access to the specific directories by IP’s or files.

The two directives you  can use:

<Files [File Name]>

Order Deny,Allow

Deny from All

Allow from [IP] or [Domain]


We have discussed about Hardening now let us move towards the another security WAF for which we have already provided some basic information, now let us get started one step further.

?Further Reading20 WordPress Security Tips To Secure Your Website in 2024


A typical approach combines Virtual Hardening and WAF to keep your website safe from any hacker’s attack or malicious attack. It is valuable as it can offer security to the WordPress without taking a great deal of time and thus securing your user’s information. We hope this post turns out to be of some help to go for the security of your site.

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