I have had two WordPress blogs hacked into in the past. That was at a time when I was doing very little internet marketing, and until I found time to address the situation (months later), these sites were penalised in the search engines. They were not removed, but the rankings were reduced.
The fix hacked wordpress site Codex has an outline of what permissions are acceptable. File and directory permissions can be changed either via an FTP client or within the administrative page from your web host.
An easy way to maintain WordPress safe is to use a few tools. First of all, do not allow people run a web host security scan, to list the documents in your folders and automatically backup your web hosting account.
Recently, the site of Reuters was hacked by an unknown hacker and posted a news article that was fake. Due to what the hacker did since Reuters is a news website, their reputation is already ruined. If you do not pay attention on the security of your WordPress 20, the same thing may happen to you.
You can extend the plugin features with premium plugins like: Amazon S3 plugin, Members only plugin, DropShop etc.. So I think you can use it and this plugin is a additional resources fantastic option.
Free software: If you have installed free scripts like Wordpress, search Google for'wordpress security'. You'll get many tips on the best way to make your WP blog secure.