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.
June Meetings Could Shape Which Entities Must Report Cyber IncidentsThe Cybersecurity and Infrastructure Security Agency's June town halls will give critical infrastructure operators a final opportunity to influence how the agency defines covered entities, reportable incidents and compliance requirements before issuing long-awaited CIRCIA regulations.
GREYVIBE, a Russia-linked group active since 2025, targets Ukraine with AI-assisted malware and five attack chains. Researchers say it’s part spy op, part crime gang. Security firm WithSecure has been tracking a previously unknown Russian-linked APT group called GREYVIBE since at least August 2025. The group targets Ukraine and Ukrainian-related organizations across military, government, civilian, […]
Researchers say 'GREYVIBE' crew used AI tools throughout a campaign targeting Ukrainian military and government
The North Korean state-sponsored threat actor known as Kimsuky (aka Velvet Chollima) has been attributed to a fresh set of cyber attacks targeting South Korean military and corporate entities through March and April 2026
Attackers Attempted to Reroute Hospital Medicaid ReimbursementsA hack on a Connecticut Medicaid web portal involving compromised credentials of a healthcare provider has affected the payment account and other information for about 22,500 patients. The data theft is the latest breach involving a healthcare related web portal hack. Why does this keep happening?
Health-ISAC Warns About Weak Governance and Credential MisuseHumans make mistakes. They fall for phishing scams and click on malicious links. Machines aren't necessarily better: Delegating decisions to agentic artificial tools can significantly intensify cybersecurity risks, warns a healthcare association.
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.
The Iranian state-sponsored threat actor known as Nimbus Manticore (aka Screening Serpens and UNC1549) has been attributed to a fresh campaign using lures impersonating organizations in the aviation and software sectors across the U.S., Europe, and the Middle East following the joint U.S.-Israeli military campaign against the country in late February 2026
The Oncology Institute disclosed a data breach tied to a third-party vendor, potentially exposing patient information after a 2025 cyberattack. The Oncology Institute has confirmed that patient information was impacted in a cybersecurity incident involving a third-party software provider. The healthcare network first disclosed the security breach in November 2025 while the vendor’s investigation was […]