Considering using dnn for a site but need to know if it has the functionality I need. Need to have the ability to provide separate site content for different users. User A should see their own content and not be able to see User B's. Is there core functionality that supports this, or a module that provides this kind of authorization?

Many thanks...

Whilst this is correct it is a solution that does not scale beyond a very few users. The effort to manage it rapidly becomes excessive.

Web sites are about sharing information.  The idea that only user A can see user A's data makes me wonder if a web site is an appropriate solution to the problem.

 Thanks so much for the replies everyone! A little more info, I've got a small number of customers that I want to be able to access the site and based on their login, see personalized information. Again I'm a dnn newbie so don't know the best way to accomplish this.

Thanks again for the help.....