First thing which platform should I choose? I think the easiest way to construct a webshop is to use a CMS system. Because the CMS systems are well-tested and popular systems. And these systems are simple to use and easy to customize. I suggest that you choose WordPress. Why? My customers can't use the majority of the CMS systems, although I'm a software developer, so I will use any CMS system easily. My experience is my customers can learn WordPress in a period and they can use it without my help. And you will see at the end of this article.
The rename your login url to secure your wordpress website Codex has an outline of what permissions are acceptable. File and directory permissions can be changed via an FTP client or within the page from your web host.
Also, don't make the mistake of thinking that your web host will have your back as far as WordPress backups go. Not always. It has been my experience that the company may or might not be doing proper backups, while they say they do. Why take that kind of chance?
Is to delete the default administrator account. This is critical because if you don't do it, a user name which they could attempt to crack is known by malicious user.
Now we are getting into things. Whenever you install WordPress, you have to edit the document config-sample.php and rename it to config.php. You want to set up the database information there.
Keep in mind that the security of your blogs depend on how you handle them. Make sure that you follow helpful resources these simple tips to prevent hacks and exploits on your blogs and websites.