Video
If you open the video on Youtube, you can find the chapters of the different settings in the description.
WordPress is the biggest system for making websites in the world. Therefore, it gets attacked the most. And even though you might think that nobody wants to hack you, your website can send e-mails and that’s what they are after. So, please, secure your website with a security plugin and regularly create a backup.
Creating a backup with Duplicator
If you install the plugin Duplicator, creating a complete backup of your website is super easy, just create a package and download both of the files – the zip file and installer.php file. To recover the backup, you would need to connect to your FTP, ideally, you would never have to do this, if you do, please find some tutorial, I am sure there are plenty.
https://wordpress.org/plugins/duplicator
Securing your website with security plugin
I personally prefer the All in one security plugin, but I also have experience with Wordfence. Wordfence is easier to set up, but then sends you annoying e-mails all the time. In the All in one, just simply install, and then click on everything you could, especially the firewall, database security etc. I would also strongly recommend to change the url of your WordPress login, that is done in the brute force. So just click this option, put some word in there, f.e. my-login, and save.
https://cs.wordpress.org/plugins/all-in-one-wp-security-and-firewall