I. Purposes and Positioning 4. Expectations Toward the Continual Improvements and Dissemination of Safety Principles based on This Guideline The environment surrounding information security is changing at an increasing pace, and the importance of making continual improvements of Safety Principles that CI operators refer to, or those established by themselves, is also growing year by year. As there is a possibility that responses to threats that have been regarded as unnecessary may become necessary going forward due to these environmental changes, CI operators are expected to regularly check on the impact of these environmental changes, and at the same time, determine the need to review Safety Principles while taking reference from this guideline. As explained earlier, in continual improvements of Safety Principles, it is desirable to refer to various relevant standards and best practices from Japan and abroad as necessary, in addition to this guideline, taking into account that this guideline contains selected items that have been determined as being highly necessary based on a cross-sectional overview of the CI sectors. Moreover, from the perspective of the aim to foster a sense of security among the citizens, and in light of the significant impact that CI has on the people’s living, the entities responsible for the formulation of Safety Principles are expected to put constant effort into disseminating the principles to parties involved in CI businesses, and at the same time, to widely disclose and publish the contents of Safety Principles in a way that does not impede with the promotion of information security measures. 5