How to Protect IM Against Hackers?

Ok, i have been goin through [url=http]www.in-my-opinion.org[/url] and thought of sharing it with IM users.. plus i have applied couple of mods from there.. and made some changed to my IM forum..
For example: Changing the admin dir, changin the database prefix, plus password protected folder on the changed admin folder (the renamed admin folder) and etc .. everything works perfectly fine for me so far..
Some of those mods need extra changes to apply to IM.. only if u know a little knowlegde in php to how to apply or how to find the error and correct only can apply those.. plus i dont advice to follow those mods.. (pls make your own decision) or ask here before you apply.. If you happen to have a question/idea/comment then pls do share it with us..
WARNING! Its always adviced to Backup your files/db before you apply any changes
For example: Changing the admin dir, changin the database prefix, plus password protected folder on the changed admin folder (the renamed admin folder) and etc .. everything works perfectly fine for me so far..
Some of those mods need extra changes to apply to IM.. only if u know a little knowlegde in php to how to apply or how to find the error and correct only can apply those.. plus i dont advice to follow those mods.. (pls make your own decision) or ask here before you apply.. If you happen to have a question/idea/comment then pls do share it with us..
WARNING! Its always adviced to Backup your files/db before you apply any changes