Sensitive data should be protected by passwords and encryption, not just hidden in obscure folders. Conclusion

Server administrators should turn off the Options Indexes setting in their server configuration.

Use a robots.txt file to tell search engines not to crawl your sensitive upload folders. Conclusion

In the early days of the web, finding "hidden" content was often as simple as knowing the right search string. Today, the phrase is frequently used by researchers, privacy enthusiasts, and curious browsers to find open directories that haven't been properly secured.

If you're interested in legitimate topics related to directory indexing, I'd be happy to write an article about: