I dream about this feature! I read this topic and see that many guys don't get it. They talk about encryption, hacker protection e. t.c. But we want it not to hide our sensitive information from Putin KGB officers
When I talking about sensitive information I mean notebook with my journal and reflection about how ***** company that i work, or notebook in which I collect articles about best ways to please your partner in bed. Or notebooks with gift ideas for girlfriend. There is nothing criminal or illegal in this notebooks. I just don't wanna that on a work meeting when I show marketing proposal somebody bt chance saw this personal notebook, cuz I use Evernote for all my note taking needs.
So all I need is ability to setup PIN code on personal Notebook