Addressing unique security challenges in operational technology and industrial control systems.
OT/ICS Differences
OT/ICS (Operational Technology/Industrial Control Systems) environments differ fundamentally from IT systems in availability requirements, legacy equipment, and safety implications. Security approaches must account for air-gapped networks, real-time monitoring needs, and equipment with limited patching capabilities.
Availability Over Confidentiality
Traditional IT security prioritizes confidentiality. In OT environments, availability is paramount—downtime causes real-world harm. Security measures that reduce availability are often rejected by operators.
Legacy Equipment
Industrial control systems often run for decades. Patching legacy equipment is difficult or impossible. Security must work around equipment that can't be updated.
Air-Gapped Networks
Many critical infrastructure networks are air-gapped—disconnected from the internet. But increasingly, remote access for maintenance and monitoring creates new risks.
Defense Strategies
OT security requires: network segmentation, least-privilege access, behavioral monitoring, and incident response planning. Security teams should work with operations teams to balance safety with protection.
Supply Chain Risks
Vulnerabilities in industrial equipment or software can impact many organizations. Organizations should monitor vendor security practices and deploy patches rapidly when available.