The fix malware problem Codex has an outline of what permissions are okay. File and directory permissions can be changed either via an FTP client or within the page from your web host.
I might find it a little harder to crack your password, if you're one of the ones that are proactive. But if you're one of those ones that are responsive, I might get you.
A snap to move - If, for some reason, you need to relocate your website, like a domain name change or a new hosting company, getting your files at your fingertips can save you oodles of time, hassle, and the demand for tech help.
Another step to take to make WordPress more secure is to upgrade WordPress. The reason behind this is that there come fixes for security holes that are older which makes it essential to upgrade.
Of course blog it's possible to set up plugins to make your store more user friendly like automated backup plugin or share buttons. That's all. Your store is up and running!