In the digital age, the cyber domain has become an intricate network of systems and interactions that underpin modern society. Sim2Real techniques, originally developed with notable success in domains such as robotics and autonomous driving, have gained recognition for their remarkable ability to bridge the gap between simulated environments and real-world applications. While their primary applications have thrived in these domains, their potential implications and applications within the broader cyber domain remain relatively unexplored. This article examines the emerging intersection of Sim2Real techniques and the cyber realm, exploring their challenges, potential applications, and significance in enhancing our understanding of this complex landscape.