Managing access to industrial control systems: a critical issue

In a context where industrial infrastructures are increasingly interconnected, managing access to control systems (SCADA, PLC, DCS, etc.) has become a key issue in operational cybersecurity. Remote access, external maintenance, network segmentation, user rights: the slightest flaw can open the door to attacks with serious consequences for production, security and business continuity. What are the specific challenges of identity and access management (IAM) in industrial environments? How can security, traceability and operational continuity be reconciled? What tools and methodologies can be used to control access without slowing down field teams or service providers? With securing access to industrial control systems no longer just a best practice but a regulatory requirement (NIS2 directive, IEC 62443 and ISO/IEC 27001 standards), critical infrastructure operators and industrial companies must implement robust, traceable access policies tailored to the specificities of OT environments.