TopSecret has built to keep your pages away of unauthorized eyes. To see a protected page, an user should know the login/password combination.
It runs in Linux boxes and in Windows when PHP is installed as a service. TopSecret is a primary security program. So, don't use it to protect sensitive data, like financial or enterprise ones. It this does not provide a 100% secureness site.
You have two options for protecting your pages. You can either have a simple protected page that only lets members access, or you can have protected pages that not only show the pages to members, but also dynamically display their name on each page and/or the web site name! Great for personalizing your pages for your members.
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