Securing Your Operational Technology (OT) Systems
- SEPTEMBER 22ND, 2025
- 1min read
Operational Technology (OT) refers to the hardware and software that manages physical devices and industrial processes, such as those in power stations, factories, and transportation systems. These OT systems are essential to industrial or operational processes, and when compromised, they can disrupt critical infrastructure and essential services, lead to significant financial losses, and jeopardise public safety such as the Triton Malware that disables safety systems designed to prevent catastrophic industrial accidents.
Cybersecurity Challenges Faced by OT Systems
- Legacy Systems: Legacy systems are OT systems that have become outdated, lack several modern security features, and are difficult to upgrade.
- Complexity: OT systems are part of a great, complex ecosystem composed of too many diverse components that are difficult to protect.
- IT Integration: The integration of the OT and IT networks exposes the OT systems to traditional IT threats.
Best Practices for Securing Operational Technology
- Periodic Testing: Periodic security testing of the vulnerabilities in the OT systems is imperative.
- Segmentation: Segment OT systems from IT networks, thus reducing the overall attack surface.
- Access Control: Establish very strict access to the OT systems. Use multi-factor authentication and role-based access control to permit access only to authorised persons.
- Threat Detection and Monitoring: Threat monitoring and detection tools like TrendMicro TXOne allow for speedy identification of critical threats.
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