A zone and conduit model, introduced in ISA/IEC 62443-1-1, is used to document the grouping of ICS and related assets into security zones and conduits. The development of the model is an iterative process that typically begins following the ICS Cybersecurity Gap Assessment
and/or ICS Cybersecurity Vulnerability Assessment
and is refined following the ICS Cybersecurity Risk Assessment
aeSolutions can assist in developing a corporate Zone & Conduit Reference Model as well a Zone & Conduit Models for specific ICSs.