ISA-TR84.00.09:2024

ISA-TR84.00.09-2024 Part 1, Cybersecurity Related to the Safety Lifecycle, provides guidance on integrating cybersecurity into the safety lifecycle of process safety controls, alarms and interlocks (PSCAI), including safety instrumented systems (SIS). It aligns cybersecurity practices with established safety standards such as IEC 61511 and ANSI/ISA-61511-1, incorporating key cybersecurity concepts and frameworks like ISA/IEC 62443 and National Institute of Standards and Technology (NIST). This technical report covers management, risk assessment, project scope development, detailed design, implementation, operation, maintenance and change management phases. It emphasizes organizational policies, technical measures and continuous assessment through checklists, KPIs and audits. It also addresses vulnerabilities, system integration, data flow analysis and compensating security measures for legacy or deficient devices.This document targets asset owners and operational technology personnel to enhance understanding and collaboration between safety, cybersecurity and IT disciplines in industrial automation environments.