The purpose of this theoretical paper is to facilitate interdisciplinary dialogue regarding the roots ofknowledge be- tween cybersecurity researchers and those from other disciplines. The approach taken is to articulatequestions based on personal reflections on the common ground and differences between cybersecurity knowledgeand selected epistemological sources. Although no independent evidence is presented for the validity or utility ofthese questions, the author hopes to refine these questions and the underlying assumptions on which they are basedboth through feedback on this paper and empirical data capture.