Automatically hide login-protected content from results?

Hi, I’ve had a look but can’t seem to find a way to ensure that content in protected areas of a site (pages that are only accessible to logged-in users) does not show up in search results for non logged-in users. Is this something that is possible at all? I know that technically I could add the URLs of those protected pages to the indexing exclusion list, but that would be a problem for 2 reasons. Firstly, because it means having to ensure that list is updated each time a new protected page is made. But secondly, and most importantly, I do want those pages to show up in search results if users are logged-in. Many thanks for any advice you can offer. It’s not possible to separate pages to be displayed to logged-in and non logged-in users. SearchIQ indexes the pages from the WordPress database and displays them in the search results.