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Critical infrastructure depends on interconnected operational systems, where cyber incidents can disrupt essential services, safety, and availability.

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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.

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12 international govt agencies sound the alarm, critical infrastructure at the heart of threats The US government today confirmed that China's Volt Typhoon crew comprised "multiple" critical infrastructure org's IT networks, and warned that the state-sponored hackers are readying "disruptive or destructive cyberattacks" against these targets.…

What is on HHS paper will most likely become law, Google security boss says Interview If you are responsible for infosec at a US hospital or other healthcare organization, and you treat the government's new "voluntary" cybersecurity performance goals (CPGs) as, well, voluntary, you're ignoring the writing on the wall. …