This chapter starts with an overview of IEC 62443, an international set of industrial cyber security standards which can be used as a framework to secure an Industrial Control System (ICS) environment. Next, the DVD solution demonstrates the importance of core security concepts such as hardening and defense-in-depth. Each concept is given a brief overview and the concept applies to the DVD solution components. Additionally, this chapter provides security configuration details and test steps for the different components within this solution.