IEEE Cybersecurity Development (SecDev) is a new venue for presenting ideas, research, and experience about how to develop secure systems. SecDev is distinguished by its focus on how to "build security in" (and not simply discover the absence of security). Its goal is to encourage and disseminate ideas for secure system development among both academia and industry. Developers have valuable experiences and ideas that can inform academic research, and researchers have concepts, studies, and even code and tools that could benefit developers. We anticipate that attendees from academic conferences like IEEE S&P, USENIX Security, PLDI, FSE, ISSTA, SOUPS, and many others could contribute ideas to SecDev, as could attendees of industrial conferences like AppSec, RSA, Black Hat, and Shmoocon.