Check out a free preview of the full Meteor course:
The "Adding Security" Lesson is part of the full, Meteor course featured in this preview video. Here's what you'd learn in this lesson:
Chris adds a couple Meteor packages to enable authentication and better secure access to the database. He then creates a login template and adds logic to verify if the user is logged in before allowing them to add comments. For the purpose of this demo, Chris is using GitHub OAuth authentication.