dmg file no longer asks for password to open
I created a .dmg file via Disk Utility several months ago. When I clicked on the filename (***.dmg) the folders and files in it immediately opened without my being prompted for a password.
- Why does this happen?
- And is there a way to add a password to protect this .dmg file without starting all over?
Any help appreciated.
MacBook Pro 13″, macOS 10.14