I have had two WordPress blogs. That was in a time when I was doing virtually no internet marketing, and until I found time to handle the situation (weeks later), these sites were penalized in the main search engines. They were not eliminated the ratings were reduced.
WordPress is a safe system but software has their flaws and security holes are found on WP. This is the reason why WP releases updates. As soon as they found any vulnerability, they make some changes and supply a new update . If you want to know about the best secure your wordpress website plugin, where these plug-ins work to assist you protect your investment, first you have to comprehend the different areas .
The one I useful source recommend, and the approach, is to use one of the generation and storage plugins available for your browser. I think after a trial period, you have to pay for it, although people like RoboForm. I use the free version of Lastpass, and I recommend it for those of you who use Firefox or Internet Explorer. That will generate passwords for you; you then use one master password to log in.
Keep your WordPress Installation up to date - One of the easiest and most valuable tasks you can do yourself is to ensure that your WordPress installation is upgraded. WordPress provides you a notice in your dashboard, so there is really no reason not to do this.
You can extend the plugin features with premium plugins such as: Amazon S3 plugin, Members only plugin, DropShop etc.. I think you can use it and this plugin is a good choice.
Free software: If you have installed scripts search Google for'wordpress security'. You will get tips.