How to make folders without index file unreachable?

I am on a shared hosting account using CPanel.

How can I set it up so that any file that does not contain an index or default file results in a 403 error? Currently, this only happens for my cgi-bin. People can snoop through other folders just by typing in their URL's...

If there is no way to do it through CPanel or HTACCESS. What do I tell my host to do on the server to request it? They don't seem to understand me.

 

 

 

 

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