First thing which platform should I choose? I think the easiest way to construct a webshop is to use a CMS system. Since the CMS systems are systems. And these systems are simple to use and simple to customize. I advise you to choose WordPress. Why? So I can use any CMS system easily, I'm a software programmer, but my clients can't use most of the CMS systems. My experience is my customers can learn WordPress in a time and they can use it easily without my help. And you'll see at the end of the article.
In my opinion, the best way to ensure that your is via using a clean hacked wordpress site backup plugin. This is a relatively inexpensive, easy and elegant to use way to be certain your website is accessible to you in case of a disaster.
Is also important. You want to backup database and all the files you can bring your blog back like nothing.
Should you ever want to why not try this out migrate your website elsewhere, like a new hosting company, you'd be able to pull this off without a hitch, and also without having to disturb your old site until the new one was set up and ready to roll.
Another step to take to make WordPress more secure is to upgrade WordPress to the latest version. The main reason behind this is that site there also come fixes for security holes making it essential to update.
Don't use wp_. That default is being eliminated by web hosting providers but if yours does not, fix wp_ to anything but that.