This session is based on a recent talk of mine on SDN and 5G, this will be a deep dive into the Software Defined Network (SDN) side of things. We will hit SDN and hit it hard. After a rundown of recent work in SD-WAN, I will return to where it all started with the Software Defined Data Center (SDDC). Briefly reviewing my previous work with open source controllers and white box switches, we will take a look at my recent work with Cisco’s APIC and Big Switch Network’s Big Switch Fabric. This will be a deeply technical talk where we will cover the risks, the threats, and the attacks useful against SDN. Most importantly, we will talk about how to secure it. Because if your network isn’t safe, neither are you.