The Montréal WordPress community held an event on WordPress security. The event had a talk followed by a "show and tell" segment. This is the talk that was given.
It's an important topic for everyone. Not just for WordPress experts.
The goal of the talk was to give everyone an overview of WordPress security. That includes basic concepts and some recommendations. The recommendations themselves target WordPress users of all skill levels. If you're an advanced WordPress user, you might not learn as much.
You can read the companion article at: http://carlalexander.ca/keeping-your-wordpress-safe/