The key to understanding network security is understanding networking. We hope the previous section has started you on the path to understanding networking. Just be patient with yourself while reading this book. There may be many new concepts that you have never heard of before. Working with these technologies over time well help solidify your knowledge. In this section, we discuss basic security concepts that will prepare you for the final section about firewalls. In this section, we focus on some of the different aspects of what it takes to have a secure organization. As you will see, there are no hard-and-fast rules about what it really takes to make your network secure. I have been to many organizations that would fall well below the line I would say is good security. However, some of those same organizations have gone years without a security breach. On the other hand, I have seen other companies spend much more on their security and have more problems with break-ins and data loss. Much like everything in the world, a balance is the best thing you can have for your network.