Zones and Conduits
ISA/IEC 62443 introduces the concepts of “zones” and “conduits” as a way to segment and isolate the various sub-systems in a control system. A zone is defined as a grouping of logical or physical assets that share common security requirements based on factors such as criticality and consequence. Equipment in a zone has a security level capability. If that capability level is not equal to or higher than the requirement level, then extra security measures, such as implementing additional technology or policies, must be taken.
Application Notes
- Defense in Depth Protection for Honeywell Experion
- Securing Redundant Links to Safety Shutdown Systems
- Case Profile: Davis-Besse Nuclear Power Plant
- Case Profile: Daimler Chrysler
Articles
- Next Generation Cyber Attacks Target Oil And Gas SCADA
- Cyber Wars
- Network Security Matures
- Cyber security for pipeline control systems
- Insidious threat to control systems
- Industrial Networks Under Attack
- Making Cyber Security Work in the Refinery
- ANSI / ISA99 security standards and the Tofino Industrial Security Solution
- Cyber Security Threats: Expert Interview with Eric Byres, Part 1
- Estimating a System's Mean Time-to-Compromise
- Using ANSI/ISA-99 standards to improve control system security
- Revealing network threats, fears - How to use ANSI/ISA-99 standards to improve control system security
- Tofino solutions for industrial data security
Blog Posts
- SCADA Cyber Security: An International Issue
- SCADA Security is a Mindset - ISSSource Explains Why at Belden Design Seminar
- Using ANSI/ISA-99 Standards for SCADA Security (plus White Paper)
- Using Tofino Security to Control Stuxnet - New Application Note
- Secure Industrial Networks with the Right Tools
- “Rip and Replace” Approach to SCADA Security is Unrealistic
- Getting Started on ICS and SCADA Security (Part 2 of 2)
- Controlling Stuxnet – No More Flat Networks PLEASE. Let's Embrace "Security Zones".
- Your ICS Security Strategy: Learn How and Where to Start
- 7 Steps to ICS and SCADA Security plus White Paper
- Speak Up NOW on New IF-MAP Specs for ICS and SCADA Security
- 32 Minutes to Understanding SCADA Security
Videos and Presentations
White Papers
- Using ANSI/ISA-99 standards to improve control system security
- Securing Your OPC Classic Control System
- Comparing Electronic Battlefields: Using Mean Time-to-Compromise as a Comparative Security Metric
- How Stuxnet Spreads – A Study of Infection Paths in Best Practice Systems
- 7 Steps to ICS and SCADA Security
- The Myths and Facts behind Cyber Security Risks for Industrial Control Systems