[support] Google pages

[Roger]

We have a Drupal 7 site which has a significant amount of information in 
members area database which is access controlled by permissions and roles.
I have noticed that in google many of our member's only pages are 
appearing. There are over 20 so far.

As the information for these pages is derived virtually by Drupal via 
taxonomy and views, I am wondering whether the member's pages google 
finds are the result of members searching and google memorising the 
search or whether in fact google is searching the site and creating the 
pages.

Can someone please advise me how best to stop google from finding and 
accessing members only data.
Help or even some understanding of how to manage this would be of great 
assistance
Thanks in advance
Roger