IEC 62645:2019 establishes requirements and provides guidance for the development and management of effective computer security programmes for I&C programmable digital systems. Inherent to these requirements and guidance is the criterion that the power plant I&C programmable digital system security programme complies with the applicable country's requirements.
This document defines adequate measures for the prevention of, detection of and reaction to malicious acts by digital means (cyberattacks) on I&C programmable digital systems. This includes any unsafe situation, equipment damage or plant performance degradation.
This second edition cancels and replaces the first edition published in 2014. This edition includes the following significant technical changes with respect to the previous edition:
a) to align the standard with the new revisions of ISO/IEC 27001;
b) to review the existing requirements and to update the terminology and definitions;
c) to take account of, as far as possible, requirements associated with standards published since the first edition;
d) to take into account the fact that cybersecurity techniques, but also national practices evolve.