If you run a web server, you have absolute control over whether Index of pages appear. Here is how to disable them on the three most common servers.
HeaderName .header.html ReadmeName .footer.html IndexOptions +FancyIndexing +NameWidth=* +DescriptionWidth=* +SuppressHTMLPreamble Index of
Sometimes included, providing metadata about the file. Why Do These Directories Exist? If you run a web server, you have
Index of Paper and Pulp Production for United States ( ... - FRED If you run a web server
Many security researchers have received thank-you letters and even bug bounties for reporting exposed directory listings.
Unreleased products, internal manuals, and proprietary designs can be downloaded freely. How to Secure Your Server Against "Index of" Exploits