Please enter your 4 digit pin.

[JamezQ]

User has to enter a 4 digit password. There is no trick about it, and they are not given the password.

The solution? Simple brute force!

Hey, sometimes brute force is simply the answer, and in the case of only 10^4 possibilities, it really is. The password will be checked by a javascript function, that checks the pass against a custom hash function. To solve the problem they will have to create a function that simply checks every possibility.