Change the characters allowed in passwords

By default Sitelok allows the following characters to be used in passwords

0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!@$%^&*()-_+=:;.,/<>{}[]|~`?

You can change them by adding this setting to slconfig.php (anywhere near your other settings is ok)

$ValidPasswordChars="0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!@$%^&*()-_+=:;.,/<>{}[]|~`?";

and changing the characters as needed.

We also have the  Password Security plugin which allows you to change the allowed characters as well as set other password requirements.