Hello Every One

I Have aedating 3.3 site , since I launched it there are much holes and bugs discovered.

There are folders must given 777 permissions, all these folders has been filled with phishing files many time and that lead at the end to suspend my account, I made htaccess to protect admin area , and that works well, which I need how I can secure this site from phishing attacks so I can let my site go online again, also If any other information about upgrading this software,,

Thanks for your cooperation