The second part of this book is the longest and also the most important. This is where you’ll learn the design principles, ideas, and concepts that make up the foundation of the secure by design approach of creating software.

We wanted to include many topics in this part, but those that made it into the book are the ones we believe are the most valuable. First, these topics will equip you with a set of tools and concepts that you can start to apply immediately in your daily coding. Second, and perhaps most important, they’ll teach you the mindset of secure by design—a mindset that’ll enable you to expand on the ideas in this book and perhaps come up with your own secure design practices. Once you understand the secure by design ideas and start seeing the connection between software design and software security, you’ll probably view software development in a whole new light.