IEC 62443-3-2:2020Security for industrial automation and control systems - Part 3-2: Security risk assessment for system design

IEC 62443-3-2:2020 establishes requirements for: a) defining a system under consideration (SUC) for an industrial automation and control system (IACS); b) partitioning the SUC into zones and conduits; c) assessing risk for each zone and conduit; d) establishing the target security level (SL-T) for each zone and conduit; and e) documenting the security requirements.