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.
Also: AI-Driven Deception, Cyber Deterrence and ResilienceIn the latest weekly update, ISMG editors reflected on the accelerating use of AI in cyber deception in 2025, geopolitical tensions and nation-state threats, and a growing shift from prevention to resilience as attacks increasingly targeted critical infrastructure and exploited human trust.
Healthcare sector mergers and acquisitions dramatically amplify cybersecurity and data privacy exposure for potential buyers and sellers, said attorney Jonian Rafti of law firm Proskauer. But there are critical steps entities can take to reduce those risks, he said.
New Report Says DOE Cyber and AI Governance Is Lagging Behind Rapid DeploymentAn inspector general report warns the Department of Energy's rapid expansion of artificial intelligence and decentralized cybersecurity controls has outpaced governance, limiting enterprise visibility and exposing critical infrastructure to persistent threats from state-backed and criminal actors.
Third-party security threats remain one of the most critical risks facing the healthcare sector. But now the increasing use of artificial intelligence by vendors adds a new layer of third-party concerns, said independent consultant Rick Doten, former healthplan CISO at Centene Corp.
Healthcare data breaches are becoming more frequent but smaller in scale, targeting smaller entities and high-value credentials and records - and AI is reshaping both the attack landscape and fraud patterns, said Jim Van Dyke, senior principal of innovation at TransUnion.
Preparing a healthcare workforce to responsibly engage with AI tools without over relying on automation or undermining human oversight will require awareness training akin to phishing exercises, said Skip Sorrels, field CTO and CISO at security firm Claroty.