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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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'Substantial proportion' of America to get a little note from next month Change Healthcare is formally notifying some of its pharmacy and hospital customers that their patients' data was stolen from it by ransomware criminals back in February – and for the first time has concretely disclosed the types of information swiped during that IT intrusion.…

Cybercriminals claim they used a zero-day to breach pathology provider’s systems Interview The ransomware gang responsible for the current healthcare crisis at London hospitals says it has no regrets about the attack, which was entirely deliberate, it told The Register in an interview.…