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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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Suit Alleges Competitor Lets 'Shell Firms' Exploit National Data ExchangesElectronic health records giant Epic Systems is accusing a rival health information network vendor, Health Gorilla, of enabling a syndicate of "sham" entities "masquerading" as healthcare providers to improperly access patient records from national health data exchanges in pursuit of money.

Analysts Say Pentagon Must Add Guardrails to Musk's Grok in Military SystemsCybersecurity analysts said Elon Musk’s Grok artificial intelligence model lacks compliance with key federal AI risk frameworks, which will likely force the Pentagon to rely on containment measures while conducting adversarial testing and restricting access to prevent unpredictable or unsafe behavior when embedding the model across its systems.

What's next for Venezuela? Click on the file and see What policy wonk wouldn't want to click on an attachment promising to unveil US plans for Venezuela? Chinese cyberspies used just such a lure to target US government agencies and policy-related organizations in a phishing campaign that began just days after an American military operation captured Venezuelan President Nicolás Maduro.…

Analysts Warn Foreign Adversaries Gaining Footholds in US NetworksCyber policy analysts told lawmakers that the United States' cyber deterrence efforts are failing, allowing China and others to embed in critical infrastructure networks with minimal cost, while calling for faster, coordinated offensive actions across federal agencies.

NIST Seeks Input to Protect AI Systems Used in Government, Critical InfrastructureThe National Institute of Standards and Technology is seeking public input from security experts and stakeholders to weigh in on security threats from agentic AI warning they may be vulnerable to exploits like hijacking, backdoors and misaligned behavior across federal networks.