No, internet browsers will allow you to visit the last page but the software will require the user to log back in to the software if he/she wants to navigate within the software. No matter what you do internet browsers like IE and Firefox cannot stop people from viewing the last page visited. If someone ever tries to use your software or look at personal info, the software will not let them do anything because clicking on another page will give the user an error: "you are currently logged out".