Critical infrastructure depends on interconnected operational systems, where cyber incidents can disrupt essential services, safety, and availability.
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Background for this topic.
Critical infrastructure includes systems and assets vital for public health, safety, and economic stability, such as power grids, water treatment, transportation networks, and healthcare facilities. These systems often combine physical components with industrial control systems (ICS) and operational technology (OT) that manage essential services in real time.
From an information-security perspective, critical infrastructure faces risks like unauthorized access to control systems, disruption of service availability, and manipulation of sensor data. Defending these assets requires specialized security measures tailored to ICS environments, including network segmentation, strict access controls, and continuous monitoring for anomalies. Ensuring resilience also involves coordinated efforts between operators and government agencies to address vulnerabilities unique to legacy systems and proprietary protocols.
A new EU action plan will be structured around four pillars: prevention, threat detection and identification, response to cyber-attacks and deterrence
A UK government consultation has proposed banning public sector and critical infrastructure organizations from making ransomware payments to disincentivize attackers from targeting these services
CISA claims US critical infrastructure providers are improving cyber hygiene and remediation activities
A joint government advisory has set out steps critical infrastructure firms should take to ensure any OT products they purchase are secure by design