The workshop will serve as a forum for sharing experiences and outcomes with protocol design, real testbeds, experimental evaluation, prototyping, and empirical characterization of innovative approaches that address security, trust, and privacy challenges of emerging CPS environments.  This workshop will also facilitate discussions on unresolved issues in the field, such as blockchain-based security solutions of critical infrastructures, secure and resilient system architectures, protocols and applications for softwarized CPS environment, SDN capabilities in critical CPS infrastructures, and other key challenges in the emerging software-defined CPS. This workshop will focus on techniques, experiences and lessons learned with respect to state of the art for the security, trust, and privacy aspects of CPS along with some open issues