Furthermore, downloading a pre-made ISO from a forum introduces security risks. An unverified ISO could be tampered with, containing malware or backdoors. Therefore, the safest and most ethically sound approach is to create the ISO personally using the official installer downloaded directly from the App Store, ensuring the integrity of the operating system files.
If you own a genuine Mac and want to test macOS Sequoia in VirtualBox on that same Mac, follow this legal workflow: macos sequoia iso for virtualbox
If you are running VirtualBox on a non-Apple host (Windows/Linux), macOS will not boot without specific "spoofing" commands. Close VirtualBox completely and run these commands in your Command Prompt (Admin) or Terminal, replacing "Your VM Name" with your actual VM name: Furthermore, downloading a pre-made ISO from a forum