The need for Cybersecurity in every Process Safety Management programme

In today’s interconnected world, cybersecurity has become an increasingly critical issue for industries managing high-hazard processes. From oil refineries and chemical plants to pharmaceuticals and utilities, operations in these industries depend on complex systems and technologies that are vulnerable to cyber threats. These vulnerabilities pose a direct risk to the safety of operations, people, and the environment, making cybersecurity an essential component of Process Safety Management (PSM).

Traditionally, Process Safety Management has focused on preventing accidents, ensuring safe operations, and managing risks associated with equipment failure, human error, and natural disasters. However, in an era where digital technologies and automation are integral to operations, cybersecurity now plays a critical role in maintaining the safety of high-hazard facilities.

Relying on Industrial Control Systems (ICS), Supervisory Control and Data Acquisition (SCADA) systems, and Distributed Control Systems (DCS) to monitor and control critical processes, systems originally designed for efficiency, but now more connected to networks and the internet, they are increasingly susceptible to cyber threats. Cyberattacks on these systems can directly impact the safety and integrity of operations, putting workers, communities, and the environment at risk.

• Increasing Interconnectivity and Complexity
  As industries digitise and embrace Internet of Things (IoT) and cloud computing, they inadvertently expand their attack surface. Cybercriminals can exploit weaknesses in connected systems to gain access to vital infrastructure, potentially disrupting operations and causing unsafe conditions. What’s more, many legacy systems within high-hazard facilities were not built with cybersecurity in mind, leaving them vulnerable to exploitation.
• Potential for Disruption of Safety Systems
  The risks posed by cyber-attacks on safety-critical systems are especially alarming. If a hacker gains access to systems that control critical safety measures, such as emergency shutdown systems, alarms, and safety interlocks, the results could be catastrophic.
• Ransomware and Data Integrity Threats
  Ransomware attacks are a growing concern, where malicious actors encrypt critical data or lock access to systems until a ransom is paid. For high-hazard operators, the potential loss of access to operational data or control systems can halt operations and prevent timely decision-making, jeopardising not only the business but also safety. Additionally, any tampering with data or process parameters could result in incorrect decisions that compromise safety.
• Regulatory and Compliance Pressures
  High-hazard industries in the UK, subject to The Control of Major Accident Hazards (COMAH) legislation, requires that they “take all measures necessary to prevent major accidents and to limit their consequences for human health and the environment.”  This includes measures to prevent or mitigate the impact of cyber-attack. Failing to meet these standards could result in significant penalties and damage to reputation.
• Human Error and Insider Threats
  Much like traditional process safety issues, human error also plays a significant role in cybersecurity risks. From employees inadvertently clicking on phishing emails to insiders intentionally or unintentionally compromising systems, the human factor is always a vulnerability. In high-hazard environments, where lives and the environment are at stake, a single lapse in cybersecurity practices can have dire consequences.

Given the intertwined nature of cybersecurity and process safety, high-hazard operators must adopt a holistic approach to managing both. Cybersecurity must be integrated into PSM frameworks to ensure that safety systems are protected from digital threats. This involves:

1. Identifying and addressing cyber risks in safety-related control systems during hazard assessments and risk analysis.
2. Implementing continuous monitoring of cybersecurity threats, including penetration testing and vulnerability assessments.
3. Developing robust response plans that address cyber threats alongside traditional safety procedures, ensuring that personnel are trained to handle both physical and cyber incidents effectively.
4. Regularly updating and patching systems to reduce the risk of exploitation through known vulnerabilities.
5. Collaborating with IT and OT teams to create a unified defence strategy that combines physical and digital security measures.

As the landscape of high-hazard industries continues to evolve, it is imperative that cybersecurity becomes an integral part of the Process Safety Management (PSM) framework. The risks posed by cyber threats are too significant to be ignored, and their potential impact on safety cannot be underestimated.

In today’s world, a cyberattack on a critical system is not just an IT issue, it’s a safety issue. High-hazard operators must recognise that cybersecurity is a core component of process safety. By integrating cybersecurity into PSM strategies, businesses can ensure that their operations are not only efficient but also safe, secure, and resilient against the evolving threat landscape.

The convergence of physical safety and cybersecurity is no longer optional, it’s a necessity for safe operations in the digital age.

Our cyber security offering is tailormade to help operators solve this issue. For more information, click here