I've just imported Whonix VirtualBox VM, and have encrypted its drive via VirtualBox settings. Now when I booted it, the default credentials are "user/changeme", and setup suggests I change the password. I am not sure if I need to change the defaults.
If the VM itself is already encrypted, does setting complex user passwords make the system any more secure? I am the sole user of this computer, I only care if someone uses it in my absence.