It's also important to change your password and admin username if you are helped by someone with your site and needs admin username and your password to login to do the job. Admin username and your password changes, after all of the work is complete. If the man is trustworthy, someone in their business may not be. Better to be safe than sorry!
Backing up your site regularly also assists in procuring from how to fix hacked wordpress site hackers. You must keep a copy of your files hide away in backup system so that you can be confident of your database. This makes you a protected backup files that serves you in times of down that is unexpected is the system. Hackers are not as likely to steal from a bonded back up system.
There are ways to pull off this, and many involve copying and FTPing files, exporting and re-establishing much more and databases. Some of these are very complicated, so it is important that you go for the one why not try this out that is best. Then you may want to check into using a plugin for WordPress backups if you are not of the technical persuasion.
Yes, you need to do regular backups of your site. I recommend at least a weekly database backup and a monthly "full" backup. More. Definitely if you make changes and regular additions to your site. If you have a community of people which are in there all the time, or make changes multiple times every day, a backup should be a minimum.
You may extend the plugin features with premium plugins like: Amazon S3 plugin, Members only plugin, DropShop etc.. So I think this plugin is a fantastic choice and you can use it.
Of course it's possible to set up more plugins to make your shop more user-friendly like share buttons or automatic plugin. That's Continued all. Your store is up and running!