You can search for your own common usernames or filenames using "site:" operators in Google to see if any of your data has been indexed without your knowledge. What to Do If Your Photos Are Indexed
There are three main ways personal media files (like .jpg or .png files) end up in public "index of" directories: index of my boobs jpg
The internet is permanent; once a file is indexed in an "Index of" directory, it can be cached by search engines and archived by third-party sites. Prevention is the only true cure. You can search for your own common usernames
For sensitive photos, avoid standard cloud folders. Use "Locked Folders" (available on Google Photos and iOS) or encrypted apps like Signal’s "Note to Self" for storage. For sensitive photos, avoid standard cloud folders
If you run a personal website or server, ensure directory indexing is turned off. You can do this by adding Options -Indexes to your .htaccess file.
Securing your personal media requires a proactive approach to understanding how servers share information with the world.
If a person uploads a photo to a forum or a blog that has directory listing enabled, that photo can be found by anyone browsing the server's file tree. How to Protect Your Private Media