Remove Default Admin User
Enhancing the security of your WordPress website can be achieved by removing the admin user and substituting it with a different name. Most hackers try to break the security by applying the admin user and guessing the password, often using bots to expedite the process. However, without the presence of an admin user, these methods will prove futile. No matter how long they persist in their guesswork, their efforts will not pay off.
To do this go into your Dashboard and find Users.
Then create a new admin user. Make sure you make it an administrator with a totally different name.
Also make the password difficult to guess by including capitals, numbers, and special characters. Now log out of WordPress and log in with your new user to make sure it works. Make note of the password. Then log in a few more times with the new user. Now delete the admin user.
Your WordPress is now a lot safer.