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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While cyberattacks against hospitals and clinics grew modestly in the first half of 2026, attacks on service providers and other healthcare businesses more than doubled.
Obscurity isn't a defense. If your company has any Internet-facing vulnerability, you're at risk from multiple threats.
A threat group researchers call "Armored Likho" has gained access to government agencies and electrical power entities in Russia, Brazil, and Kazakhstan.
And one of those basics is focusing on sectors where a ransomware disruption creates immediate pressure to pay up, like with healthcare.
The denial-of-service (DoS) exploit takes advantage of two features in HTTP/2 that were designed to save Internet bandwith, not power massive amplification attacks.
Two separate campaigns target CVE-2025-8088, fixed last July, to conduct data theft and cyberespionage against military and government targets in Ukraine.
A recent congressional hearing highlighted how states are reeling from federal cutbacks to important cybergrants and information-sharing initiatives amid damaging attacks to critical infrastructure.
Ransomware and vendor breaches persist. The "2026 Data Breach Investigations Report" (DBIR) highlights how evolving social engineering tactics make the sector more vulnerable.
As the war with Iran continues, breach attempts targeting the United Arab Emirates tripled in a few weeks — many targeting critical infrastructure.
Flaws in OpenEMR's platform — used by more than 100,000 healthcare providers — enabled database compromise, remote code execution, and data theft.
Attackers compromised Internet-facing OT devices and caused file and display manipulation, operational disruption, and financial losses across sectors.
Medical professionals are not going to stop using AI tools to manage growing workloads. Organizations should prioritize bolstering security protocols to limit their blast radius.
Or, why the software supply chain should be treated as critical infrastructure with guardrails built in at every layer.
The two key economic sectors struggle with security for a reason: Many insiders view access management as a roadblock, while attackers see it as a way in.
Operational technology (OT) at industrial and critical infrastructure sites seem to have been benefitting from a lull in ransomware, and hackers' relative ignorance of OT systems.
A phishing campaign targeting healthcare, government, hospitality, and education sectors in various countries uses several evasion techniques to avoid detection.
The suspected India-linked threat group targets governments, telecom, and critical infrastructure using spear-phishing, old vulnerabilities, and rapidly rotating infrastructure to maintain persistent access.
Researchers uncovered an extensive cyber espionage campaign that used novel backdoors and familiar evasion techniques to maintain persistent access to regional targets.
Government agencies, emergency clinics, and others in Australia, New Zealand, and Tonga have had serious run-ins with the prolific ransomware outfit.
India-nexus cyber threat actors are growing more active and sophisticated, using custom tools coded in Rust and cloud-based command and control.