make a certain album accessible only for members of a certain group, to which you add people. If you want, you can register for them and send them a password. Please take a look at the
docs that come with coppermine and search this page (this has been discussed a lot). For a simple password protection, you could use the
.htaccess method...
If the "usual" methods don't work for you, there's no password-mod available yet that will protect albums in coppermine without user registration.
Anyway: you posted in "feature requests", so I guess you knew what you're doing: simple password protection has been requested before and will possibly be in future versions (not done yet, but considered an option).
GauGau