ANSI/ISA-62443-2-4-2018

offers a detailed framework for security capabilities that service providers should deliver during the integration and maintenance of industrial automation and control systems (IACS). This standard helps organizations clearly define roles, responsibilities and processes to effectively manage cybersecurity risks throughout an automation solution's lifecycle. It supports customization through profiles tailored to specific industries or environments, making it adaptable to various operational needs. Furthermore, by implementing a maturity model based on the Capability Maturity Model Integration for Services (CMMI-SVC), ANSI/ISA-62443-2-4 provides a way to evaluate and improve the consistency and effectiveness of security practices over time. Focusing on personnel training, background checks and collaboration with control system product suppliers strengthens the overall security posture. It also promotes transparency through documentation and verification requirements, leading to better communication between service providers and asset owners. This method aligns technical security measures with organizational processes, helping to address emerging threats in complex industrial environments.