CISO

CISO stands for Chief Information Security Officer. It is a senior leadership role responsible for establishing, overseeing, and continuously improving an organization’s information security and cybersecurity program.

Core responsibilities

In industrial and regulated manufacturing environments, a CISO typically:

• Defines the organization’s information security strategy and supporting policies
• Leads risk assessment for IT and OT systems, including production networks and connected equipment
• Oversees controls for data protection, access management, incident detection, and response
• Coordinates with operations, engineering, quality, and IT/OT to protect production systems and sensitive technical data
• Supports alignment with applicable cybersecurity and industry standards and customer requirements
• Reports security posture, risks, and incidents to executive leadership and, where applicable, the board

Operational role in manufacturing

Operationally, a CISO in a manufacturing or industrial organization is often involved in:

• Reviewing security architecture for MES, ERP, and plant-floor systems
• Setting requirements for secure remote access to production assets
• Defining procedures for vulnerability management and patching in mixed IT/OT environments
• Contributing to business continuity and disaster recovery planning for critical manufacturing systems
• Supporting information security aspects of supplier access and data exchange

Relation to ISMS ownership

In organizations that maintain an Information Security Management System (ISMS), the CISO commonly serves as a central owner or sponsor for day-to-day ISMS activities. Executive leadership remains accountable for overall risk and governance, while the CISO coordinates implementation, monitoring, and continuous improvement with cross-functional stakeholders.

What a CISO is not

• Not necessarily the only security role: many organizations have security managers, OT security leads, or compliance officers who support or complement the CISO.
• Not limited to IT security: in industrial settings, the CISO often has responsibilities that extend to OT networks, plant systems, and interfaces between engineering, quality, and enterprise IT.
• Not the same as a CIO: the Chief Information Officer typically focuses on overall IT strategy and services, while the CISO focuses specifically on security risk and controls.

Common confusion

• CISO vs. CIO: The CIO manages information technology as a whole (infrastructure, applications, services). The CISO manages information security, which may cut across IT, OT, and business processes.
• CISO vs. CSO: In some organizations, a Chief Security Officer (CSO) role exists and may cover both physical and cyber security. In others, CISO and CSO are separate or combined, depending on structure and scope.