Open Source Document Management System | OpenKM

I have created an account with username: JoeBloggs
Now i am able to login with username joebloggs/Joebloggs/ etc..system is case insenstive for username.
How do i prevent this.

Username are case sensitive, basically you should not create users with upper and lowercase.

You can force from administration parameter to login in lowercase ( take a look on configuration parameters for it ) if you enable it only lowercase users will be allowed to login.