The Protected Note plugin for Obsidian is a game-changer for users who want to keep their notes private. With this plugin, you can set a password of your choice and hide your notes from prying eyes. Imagine being able to store sensitive information or personal thoughts without worrying about others accessing them. The plugin also offers encryption options, allowing you to secure all your .md files with AES cipher. Additionally, the auto-lock feature ensures that Obsidian will block access if you're not actively using it.