Given the constraints of the OT environment, Schneider Electric is pursuing an approach that focuses on aligning ongoing and future OT security efforts towards a set of core principles, rooted in zero trust best practices. The current and future efforts include improving authentication in the factory environment through: – Identity-based authentication across industrial personal computers (PCs) and humanmachine interface software (HMIS). – Role-based access control for key systems. – Replacement of obsolete, legacy or insecure-by-design equipment where possible. – Increased security oversight of third-party suppliers and manufacturing partners. – Certification of control systems against IEC 62443 standards that secure the development and maintenance of industrial automation and control systems. – Instating of systematic backup, restoration and management of all OT devices such as PCs, programmable logic controllers (PLCs) and printers. – Education of OT actors on this upcoming change. Over time, efforts will convert into impact since the organization is just launching this initiative.