Is there a way to keep a page from rendering once a person has logged out but hit the “back” button?

Question

I have some website which requires a logon and shows sensitive information.

The person goes to the page, is prompted to log in, then gets to see the information.

Answer 1

For completeness:

Response.Cache.SetCacheability(HttpCacheability.NoCache);
Response.Cache.SetNoStore();
Response.Cache.SetExpires(DateTime.Now.AddMinutes(-1));