: For Android 11+, use the MediaStore.setOwnerPackgeName if you are moving files from public DCIM to a private index to maintain metadata. Summary Checklist
High (depending on the content and sensitivity of the images) Status: [Open/New] 1. Executive Summary Index-of-private-dcim
Ensure the autoindex directive is set to off inside your server block: server location / autoindex off; Use code with caution. 2. Implement Strong Authentication : For Android 11+, use the MediaStore
File Transfer Protocol (FTP) servers or WebDAV instances used to transfer media are sometimes configured to allow "Anonymous" reads. Search engine crawlers can index these links, making them discoverable through global search fields. The Security Risks of Unsecured Directories : For Android 11+