Read permission setting for project/task and note/todo

Hi all,

I am using to do/note in user A and i find I need set to do/note items permission for all as read. Then another user B can see them exist. I.e. default is private to owner.

For project/task, I set it up, but not set to all read only, user B still can see project/task items. I.e. default is open to read to all.

How can I config project/task is same to note/to do as private?