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Security by design, Sbd is a concept for developing and maintaining systems that are, to the greatest extent possible, free from security vulnerabilities and impervious to security attacks. In addition to technical aspects, such as how to develop a robust industrial control systems hardware, software, communication product, etc., SbD includes also soft aspects, such as organizational managerial attitude and behavior, and employee awareness. Under the Sbd concept, systems, ICS in our context, will be considered more trustworthy by users. User's trust in the systems will be derived from the meticulous adherence to the SbD processes and policies. In accordance with the SbD concept, security is considered. Security measures are implemented, at every stage of the product and systems development life cycle, rather than afterwards. This document presents the security requirements for the implementation of the SbD in industrial control systems. The information presented does not negate any existing security and cyber security standards, etc. Instead, we strongly recommend that organizations should implement and comply with those standards and best practices. Security by design is not a one-time process. It starts at the very beginning of the products of the system design and continues through all its lifecycle. Due to the benefits of the SbD, higher level of security, and robustness to cyber attacks, all organizations associated with the energy sector should strive to establish an ecosystem. The requirements presented in this document may be perceived as burdensome by organizations. However, strict compliance with the requirements and existing security standards and best practices, including continuous monitoring, as specified in this document, is essential to realize an ecosystem driven and protected by the SbD
Shirtz et al. (Sun,) studied this question.