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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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After Disrupting Ascension Health, Black Basta Forecast Reprisals From FBI, Moscow"We are pentesters, not murderers," ransomware group Black Basta claimed in its negotiations with victim Ascension Healthcare in May 2024, after its attack led to widespread disruptions and patient safety alerts. Leaked chat logs reveal the group feared resulting reprisals from the FBI and Moscow.

Health Industry Associations Complain That Proposed Cyber Mandates Are 'Staggering'Seven major healthcare industry groups are urging the Trump administration to rescind a proposed update to the HIPAA security rule issued at the end of the Biden administration. The costs and regulatory burden to comply would be "staggering" to the healthcare sector, they said.