Critical infrastructure depends on interconnected operational systems, where cyber incidents can disrupt essential services, safety, and availability.
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Background for this topic.
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.
Weekly headline count for the current query.
SonicWall records 264,000 events in first five months of 2026 as UK hospitals come under siege
A China-linked threat group has been targeting critical infrastructure in Southeast Asia with a new custom backdoor called TinyRCT
Hospital insider escapes criminal prosecution after attempting to sell royal’s medical records
Richard Horne, the NCSC CEO, said three-quarters of cyber-attacks targeting UK critical infrastructure came from nation-state actors
A perfect storm of legacy devices, hyper connectivity and human fatigue is bad news for the healthcare sector, warns Cyber Salus
Commercial AI models were used to help plan and conduct cyber-attack against operational technology of a water and drainage facility, say researchers
CISA’s CI Fortify initiative aim for critical infrastructure operators to build isolation & recovery
RunSafe report reveals most attacks on medical devices disrupt patient care
CISA has revealed Iranian attacks causing disruption and financial loss at US critical infrastructure firms
E2e-assure says 80% of critical infrastructure providers could face millions in downtime from cyber-attacks
35% of security leaders working in the UK’s critical infrastructure said regulatory requirements are the primary influence on their security programs
Dutch intelligence reveals Russian state hackers are trying to hijack the Signal and WhatsApp accounts of key targets
Military strikes in the Middle East escalate cyber ops, raising spillover risks globally for firms
Ransomware Medusa linked to North Korean hackers targets US healthcare amid ongoing attacks
UK NCSC warned of disruptive cyber attacks by Russian hacktivists targeting critical infrastructure
Taiwan recorded an average of 2.63 million cyber intrusion attempts to it critical infrastructure per day coming from China in 2025
NIST and MITRE are collaboratively launching two centers to advance AI security for US manufacturing and critical infrastructure
Amazon researchers believe this campaign is part of a bigger operation spearheaded by Russia’s military intelligence service, the GRU
Pro-Russia hacktivist groups have been observed exploiting exposed virtual network computing connections to breach OT systems
The UK government’s proposed ransomware payment ban for public sector and critical infrastructure will come with national security exemptions