How to divide a plant network into zones, control what crosses between them, and why flat OT networks keep making incident reports.
OT Cybersecurity
OT cybersecurity: segmentation, hardening, monitoring, and incident response.
IndexISA standards: ISA-95, ISA-88, ISA/IEC 62443 (isa.org)
ISA's standards library, including ISA-95/IEC 62264 (enterprise–control integration), ISA-88 (batch), and ISA/IEC 62443 (OT security).
IndexNIST SP 800-82 Rev. 3: Guide to OT Security (csrc.nist.gov)
NIST SP 800-82 Rev. 3: the current federal guide to OT security — architecture, risk assessment, controls, and incident response for ICS.
Terms in this topic
- IEC 62443
- Core OT cybersecurity standard series.
- Industrial DMZ
- Buffer segment between IT and OT networks.
- OT
- Hardware/software that monitors and controls physical processes.
- Purdue model
- IT/OT layering model underlying segmentation design.
- Zones and conduits
- Segment assets; control every path between segments.