It’s still on our todo list to support this directly, but I wanted to mention that it’s currently possible to password protect a note in a roundabout way: by importing a password protected PDF into the note. This will password protect the note with the password of the PDF. You can even delete the PDF from the note and the password will remain on the note.Anonymous commented
Please add password protect specific notes or notebooks. Use this apo for work related notes that really need to be password protected.