This course focuses on the basics of what security is and how bad guys may try to find ways of harming you because of your lack of security. We'll be looking at a variety of things, both from a work perspective and a personal perspective, on what it means to have security, why security is important, and what you might be able to do to help improve your defenses. We're looking at a variety of topics including a basic definition of what it is to have security and the idea of the CIA triad and the core foundation concepts there. We'll also discuss some other common security, foundational terminology, as well as some networking and protocol terminology. We'll discuss risk and what risks are. And finally, we'll take a look at security versus usability and how we can tie all of these things together.