First thing which platform should I choose? I believe the easiest way to build a webshop is to use a CMS system. Since the CMS systems are well-tested and very popular systems. And these systems are easy to use and simple to customize. I suggest that you choose WordPress. Why? So I will use any CMS system easily I'm a software developer, but my clients can't use most of the CMS systems. My experience is my clients can learn WordPress in a short time and they can use it easily. And you will see at the end of this article WordPress is very user friendly.
Since scare tactics seem to be what compels some people to take fix wordpress malware removal a little more seriously, or at least start thinking about the issue, let me shoot a scare tactics your way.
Is also important. You need to backup database and all the files you can bring back your blog like nothing.
Yes, you want to do regular backups of your website. I recommend at least a weekly database backup and a monthly "full" backup. More, if possible. If you make additions and changes definitely. If you have a community of people that are in there all the time, or make changes multiple times every day, a backup should be a minimum.
If you're not running the latest version of WordPress, upgrade now. Like keeping your door unlocked when you leave for vacation, leaving your site in an old version is.
There are always going to be risks being online (or even just being alive!) Also it's easy to get caught up in the fear. When we get caught up in the fear, we often put the breaks on. This isn't a response. Take some common sense precautions forge ahead. If YOURURL.com something does happen, it will need to be dealt with then and no amount of quaking in your boots before-hand will have helped. If nothing does, all is good and you have not made yourself ill.