Defines the minimum number of lower case alphabetic characters in a password. Rationale: In setting the minloweralpha attribute, the password must contain a lower case alphabetic character when it is changed by the user.
Solution
In /etc/security/user, set the default user stanza minloweralpha attribute to 1: chsec -f /etc/security/user -s default -a minloweralpha=1 This means that there must be at least 1 lower case alphabetic character within a password. Default Value: default minloweralpha=0