Click the cat to crack a password Use the buttons on the right to modify the list of characters the program will cycle through If the password has any characters that aren't in the list it won't work The list is set to the alphabet by default
Increasing the length of the password will increase the time it takes to crack it exponentially. The time it takes roughly follows the formula (length of character list) ^ (length of password) so a long password will take a very long time to crack.