OT Cybersecurity Services

OT (Operational Technology) cybersecurity focuses on protecting industrial control systems, SCADA networks, PLCs, and other technology that controls physical processes like manufacturing lines, power grids, pipelines, and water treatment plants.

Unlike IT systems where the primary concern is data confidentiality, OT security prioritises availability and safety. A cyberattack on an OT system can stop production, damage physical equipment, or endanger human lives, making the stakes high and the security approach fundamentally different.

Yes. All Simply Data OT engagements begin with a detailed scoping session where operational constraints, no-go zones, and safe testing windows are agreed with your engineering and operations teams.

We use passive, non-intrusive assessment techniques wherever possible and avoid any active scanning of live control systems without explicit operational approval. Our goal is to improve your security without ever compromising production availability or safety.

Under the Cyber Security Act 2024 (Act 854), NCII entities face penalties ranging from RM200,000 to RM500,000 and/or imprisonment depending on the severity of non-compliance, making OT security a legal requirement, not a discretionary measure, for organisations across Malaysia's eleven designated NCII sectors.

For NCII entities where operational technology forms part of critical infrastructure, including energy, water, transportation, and manufacturing, cybersecurity risk management covering OT environments is enforced by NACSA under Part III of the Act. Obligations include annual risk assessments, biennial audits, and immediate incident notification. Failure to notify NACSA of a cybersecurity incident specifically carries the higher penalty of up to RM500,000 and/or ten years' imprisonment.

Beyond NCII entities, any organisation with industrial systems connected to corporate networks faces cyber risk that boards and insurers increasingly expect to be actively managed.

We conduct OT security assessments against IEC 62443, NIST SP 800-82, and the MITRE ATT&CK for ICS framework, the three most widely recognised international standards for industrial cybersecurity. Findings are mapped to these frameworks to provide a structured, benchmarked view of your OT security posture.

Contact Simply Data immediately. Our OT incident response team is experienced in containing cyberattacks in industrial environments without triggering unplanned shutdowns or safety system activations. We coordinate closely with your plant operations team throughout the response, recognising that in OT environments, operational continuity and personnel safety take priority alongside containing the attack.

Yes. Simply Data has delivered cybersecurity engagements across energy, utilities, manufacturing, and government-linked infrastructure in Malaysia. Our team is familiar with the regulatory environment under the Cyber Security Act 2024, NACSA requirements for NCII entities, and the operational realities of Malaysian industrial organisations.

The first step is a scoping consultation where we understand your OT environment, identify the systems and networks in scope, and agree on the assessment approach that works within your operational constraints. Contact us to arrange a free initial consultation, and we will provide a tailored proposal within two business days.

The Purdue Model is a widely used framework for organising and securing industrial control system (ICS) and operational technology (OT) networks. It separates industrial environments into different layers, from physical equipment and control systems on the factory floor to business applications and corporate IT networks.

The model is important because it helps organisations segment critical OT systems from less secure IT environments. Without proper separation, a cyberattack that starts on a corporate network could potentially spread into industrial systems and disrupt operations.

For organisations in sectors such as energy, water, transportation, and manufacturing, the Purdue Model provides a practical approach to OT network segmentation and is commonly referenced in industry standards such as IEC 62443. Effective segmentation helps reduce cyber risk, limit attacker movement, and improve the resilience of critical operations.