When installing WordPress, the default administrator username is “admin”, unless otherwise specified. As you probably know, the admin user has full permissions giving it access to control the whole WordPress site.
If the admin username is not changed from the default, a hacker can easily break into your website using something called a “brute force attack” to obtain the password from the admin user and attack your site via the WordPress admin.
Firstly, you need to ensure that you choose a username that contains an uncommon combination of words and maybe numbers and symbols too. For example: “john101975”. Now to change the default admin user, just follow these steps…
And that’s it. The default WordPress admin username has been successfully deleted and the security level of your administrator account has been increased.