Regional Head - OT Cybersecurity, APAC · Siemens Energy · Malaysia
Bringing AI into industrial cybersecurity without compromising the safety and reliability of critical infrastructure.
Narsi Ragu is a senior OT/ICS cybersecurity leader with over 15 years of experience securing process control networks and industrial control systems across the oil & gas, refining, petrochemical, power generation and utilities sectors in the Asia Pacific and Middle East regions.
In his current role at Siemens Energy's Global Services Controls & Digitalization division, Narsi leads the regional OT cybersecurity business across APAC markets spanning advisory, Managed Detection and Response (MDR), and Cyber Security Operations Centre (CSOC) service delivery aligned with IEC 62443 and NIST SP 800-82 frameworks. He brings deep experience designing and operating OT security services across multi-site, multi-vendor DCS, SCADA and SIS estates, with a current focus on the integration of AI into OT security operations, including LLM-assisted threat analysis, agentic AI monitoring, AI-driven exposure management, and the emerging Model Context Protocol (MCP) and agent-to-agent workflows reshaping how industrial SOCs detect and respond to threats in real time.
He maintains active engagement with cybersecurity regulators and national agencies across ASEAN, advising on OT compliance requirements, data sovereignty constraints and certification pathways for critical infrastructure operators, as well as on the responsible adoption of AI in industrial cybersecurity - including AI governance frameworks for cyber-physical systems, the dual-use risks of agentic AI in OT environments, and how AI-powered threat intelligence and autonomous detection capabilities can be safely integrated into critical infrastructure without compromising operational safety and reliability.
He is a senior member of the ISA Malaysia Section and is based in Kuala Lumpur, Malaysia.
8–9 December 2026, Hilton Hotel, KL Sentral, Kuala Lumpur, Malaysia