After my first hack attack I looked for a comprehensive and easy to use tool, to increase the protection my other sites.
Akeeba admin tools pro is everything it promises, along with fast, friendly service when I needed some help.
It simplifies admin tasks, setting permissions, creating .htaccess and wrapping a wall around the site to prevent those nasty bots from munching into my files.
I learn't a lot from the well written manual about security threats, what they are and how to prevent them and highly recommend this component and Akeeba back up.
Well worth the money for the pro version!