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 popular and well-tested systems. And these systems are easy to use and simple to customize. I advise you to choose WordPress. Why? My clients can't use most of the CMS systems, although I'm a software programmer, so I will use any CMS system easily. My experience is my customers can learn WordPress in a short period and it can be used by them without my aid. And you'll see at the end of the article.
If you do not have good protection on your site files can easily get lost. A few of those files may be saved on your computer and easily replaceable, but what about the rest of them? If you lose them the first time where are you going to get them from again? Especially fix wordpress malware cleanup is vital. Long-term sites have a lot of data and have made a number of documents. Recreating that all would be a nightmare, and not something any business owner wants to do.
Protect your login credentials - Don't keep your login credentials where a hacker might locate them. Store them off, and even offline. Roboform is very good for protecting them, too. Food for thought!
In case you ever wish to migrate your site elsewhere, like a new hosting company, you'd have the ability 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.
Make a note of your password for the next time you sign in! I recommend the paid or free version of the Source secure software *Roboform* to remember your passwords.
You do consider needing security when your website is new but you do need to protect your investment and yourself. Having a site go down and not being able to restore it can mean a major loss of customers who won't remember to search for Visit Your URL your website later and can not find you. Do not let this happen to you. Back your site up after you get it started, as the website is operational, and schedule backups for as long. This way, you will have peace and WordPress security of mind.