X-Protection is a secure login script for your website. It can even be implemented into an existing database. The script supports userlevels which enable you to control what type of user can access your pages. Sessions are also used to store login information securely on your server so attackers cannot reach it. Hashing of passwords is also used in the script to ensure that the users anonymity remains. The login page is also 100% completely customisable. Installing is simple, just copy a small single line of code to the top of the pages you wish to protect.
