Sadly for me, the password was leaked. How do I change it to the new universal password for every album? 
That's where the suggestions come in place, both my suggestions and Craig's suggestions.
Obviously, for Craig's suggestions, he said that the best way for Retromatic was if he's to have a Patreon. Every month he could update the password and charge people monthly for if they wish to have it. I am not sure how easy that is for him. Or alternatively, create a membership and you pay for X amount of downloads.
But, for me, i appreciate his suggestions, but my only suggestions were either to restore the original universal password for all albums that was once used to be, or alternatively, change to the new universal password for all the albums in my opinion.