There are multiple reasons why website owners and managers love WordPress. But there is one big reason why even hackers love it: its popularity. Hackers are constantly looking for ways to break into WordPress websites. Thankfully, there are some steps you can take to protect your website from such threats. WordPress hardening is a proven way to make it harder for hackers to attack your website.
Short for Secure Socket Layer, an SSL certificate moves it from the previous HTTP notation to the more secure HTTPS notation (with the secure padlock). This ensures that all the data between your user’s browser and your website is encrypted, and therefore, safe. Even Google recommends that every website has an SSL certificate for the security of its users.
How can you move your site to HTTPS?
All you need to do is install an SSL plugin like Let’s Encrypt on your WordPress site, and you are all set.
This is probably the easiest and most effective way of hardening WordPress websites. Ensure that all your users including your WordPress administrators configure login passwords that are at least eight characters long and have a combination of upper- & lower-case alphabets, numbers, and special characters.
You can also install a password management tool like Last Pass to automatically generate and store strong passwords. Additionally, make sure to regularly change all user passwords, say every three months.
WP hardening is not complete without protecting your login page from brute force attacks. Two-Factor Authentication is a proven method for securing any WordPress login page. With 2FA, users signing into their account have to go through a 2-step verification process of:
How do you enable 2FA? For WordPress sites, install a 2FA plugin like Google Authenticator.
By default, WordPress allows an unlimited number of login attempts, which is what brute force attacks take advantage of. You can harden WordPress login pages by limiting the number of failed attempts.
To enable this, you can either use the Limit Login Attempts Reloaded WordPress plugin or use security plugins like MalCare that have in-built login page protection.
You can even limit attacks by hiding your WordPress login page.
WordPress firewalls block any hacker before they can gain forced entry into your website. A firewall can track malicious IP addresses or those used by hackers across the globe and block any IP request sent from these addresses.
Want to know how to harden WordPress sites with firewalls? Popular WordPress security plugins, like MalCare, have an in-built web application firewall that can easily be enabled for your site.
Security plugins are the best way to detect and fix current issues as well as prevent future attacks on your WordPress site. Since they are developed exclusively for WordPress, they detect security issues that are advanced, lesser-known, or easy for you to miss.
WordPress hardening plugins like MalCare or Sucuri combine multiple security practices so you can harden your website in just a few clicks. For instance, MalCare, in addition to malware scanning and automated malware removal, also has an in-built 2FA feature, firewall protection, and an easy way to update your WordPress plugins, themes, and core across multiple websites.
Installing a security plugin is the best way to take charge of your website security without having to depend on technical experts.
This completes our list of the six easy ways to run WordPress hardening.
Now, let’s take a look at seven slightly advanced ways to harden WordPress security that will bolster your website security.
While this is slightly technical, it is fairly simple. Hackers, after gaining control of your website, often insert their malicious PHP functions to damage your back end files. What you need to do is block the execution of any PHP files from any unknown folders of your WordPress installation.
How can you do this? Locate the .htaccess file in your WordPress installation and paste the following code with the help of a text editor tool:
deny from all
Apart from inserting their PHP functions, hackers can easily modify back end files and plugins/themes once they gain control of your website. Then, they launch attacks like SQL injections and spam hacks by inserting their malicious code or scripts using your File Editor tool. These attacks lower your website’s credibility, drive your users away, and even damage your SEO rankings.
The best guard against such attacks is to disable your file editor tool. To perform this step, open the WP-config.php file in your WordPress installation and insert the following code:
define( ‘DISALLOW_FILE_EDIT’, true );
WordPress sites often store user credentials so that registered users don’t have to keep entering their username and password each time they access their login accounts. To secure these credentials, WordPress stores them in encrypted form instead of plain text.
Security keys are random variables that are used to encrypt these credentials. Hackers try to gain control of these security keys to decrypt the user credentials and gain illegal access to accounts.
As an effective WordPress hardening measure, it is a good practice to change these security keys regularly. To do this, you can use the Secret Key link to generate your security keys and then insert them into the secret-key section of your WP-config.php file.
Hackers often use bots to target attacks on the WordPress Admin page (/WP-admin). This is why your admin panel has to have an extra layer of security.
The best way of securing your WP-admin panel is to install the SSL certificate first and then add the following code to the WP-config.php file of your WordPress installation:
While this step may look simple, it can lead to plugin-related complications later; we recommend that you do this with the support of a WordPress technical expert.
As we have seen in some of the previous steps, hackers often try to control websites through the crucial WP-config.php file. To harden WordPress, you must protect the WP-config PHP file at all costs.
Here are some ways by which you can secure the WP-config.php file in your WordPress installation:
order allow, deny
deny from all
Typically, hackers try to break into accounts of WordPress administrators as they have the highest levels of permissions. Once they gain control of an admin account, hackers can inflict maximum damage compared to breaking into user accounts with lesser privileges.
Apart from Super Admin and Administrator roles, WordPress supports four other user roles — including Editor, Author, Contributor, and Subscriber — that have lower privileges.
To implement least privilege permissions, limit the number of administrators, and assign lower roles to other users. By limiting the number of admin users, you can minimize the damage caused by hackers even if they manage a successful hack.
Most WordPress websites continue to use the default username, such as ‘admin’ or ‘webmaster’, for administrators. This makes it easier for hackers to guess the administrator credentials and launch attacks on the admin accounts.
You can harden WordPress admin accounts by changing the default administrator account name that is harder to guess. You can perform this task:
UPDATE wp_users SET user_login = ‘newuser’ WHERE user_login = ‘admin’;
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