A few months ago we published a tutorial of this here on the website, but many of you may prefer it on video then on this one. ?
see how protect your notes with password (or Touch ID), both on iPhone and Mac. The novelty was brought to us in iOS 9.3 and OS X El Capitan 10.11.4, that is, you need them minimally to use it.
If you like it, leave your like on YouTube and share the tip!