Defines the minimum number of digits in a password. In setting the mindigit attribute, the password must contain a digit when it is changed by the user.
Solution
In /etc/security/user, set the default user stanza mindigit attribute to 1- chsec -f /etc/security/user -s default -a mindigit=1 This means that there must be at least 1 digit within an 8 character user password.