On this episode of TCSC podcast, Scott Brammer leads us into the search for "The Cyber Leader". This was be a multi-episode series to define the modern Cyber Leader. The purpose of the episode is to clarify the area of operations, or domain, where we find that Cyber Leaders ply their trade. We return to first principles and examine the definitions of cyber, cyberspace, cybersecurity, and information security so we can better understand the full measure of the Cyber Leader. As the series progresses, the roles and responsibilities of Cyber Leaders will be explored.