FPGA data diodes for hardware-based OT cybersecurity
FPGA stands for Field-Programmable Gate Array. The easiest way to understand it is this comparison: A CPU runs instructions. An FPGA becomes a circuit.
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Allowlist or Blocklist: How to Choose the Right Security Approach?
A blocklist allows by default, and blocks known threats. The advantage is flexibility.
An allowlist approach works in the opposite way. Everything is denied by default, and only explicitly approved users, devices, applications, or communications are permitted.
Reducing PLC Cyber Risks by Redefining Connectivity
As geopolitical tensions increasingly extend into cyber operations targeting critical infrastructure, recent attacks against internet-exposed PLCs in U.S. critical infrastructure environments have again highlighted a problem the OT industry has discussed for years, but still struggles to eliminate in practice: control systems that remain reachable from outside the operational network.
Physical Layer Isolation in OT: When Security Becomes Architecture
Operational technology (OT) environments were historically designed around reliability and determinism, not cybersecurity. Systems such as SCADA, energy management, and industrial control networks assumed limited connectivity and trusted operators. As these systems increasingly connect to enterprise networks, cloud platforms, and remote monitoring tools, the security model must evolve without compromising operational stability.
Internet-exposed ICS remain a prime cyber target
In October 2025, the Canadian Centre for Cyber Security issued an Alert warning CISO and decision makers of increasing cyber-attacks exploiting internet-accessible industrial control systems (ICS). Reported incidents included tampering with water pressure values, triggering false alarms in an oil & gas facility, and manipulating temperature and humidity levels in a grain drying silo. These individual companies may not be direct targets of adversaries but have become victims of opportunity to gain media attention and undermine public trust.
Why SBOMs Matter for Industrial and Critical Infrastructure Security
Networking devices, like food, can introduce risks from the big wide world into critical infrastructure systems. Modern industrial systems are a blend of hardware, firmware, and software. As a result, evaluating devices requires more than reviewing a physical Bill of Materials (BOM).
Bridging the IT/OT gap for cyber resilience in critical infrastructure
For networking operators in factories, utilities, and government agencies, the convergence of Information Technology (IT) and Operational Technology (OT) is no longer a theoretical concept—it’s reality, and fraught with increasing cybersecurity risks that exploit the gap in between, exposing critical infrastructure to sophisticated threats.
An In-depth Look at Hardware-based Cybersecurity
In our digitally-driven age, safeguarding sensitive data and systems is of utmost importance. Hardware-based cybersecurity, unlike mere software solutions, has emerged as a pivotal component in this defense mechanism. But what is meant by “hardware-based cybersecurity”? At its core, it refers to physical devices explicitly crafted to defend computer systems against vulnerabilities and threats. More than just a protective shield, these hardware security tools significantly influence an organization’s overarching cybersecurity approach.
Securing the Future: A Comprehensive Guide to OT Cybersecurity
In the ever-evolving digital landscape, one aspect that has gained significant attention is OT cybersecurity. As our reliance on technology grows, so does the need for robust security measures, especially in the realm of operational technology (OT). But what exactly is OT cybersecurity, and why is it becoming increasingly important?
What is Critical Infrastructure Cybersecurity: Solutions & Examples
Critical infrastructure refers to essential systems and assets, both physical and virtual, whose incapacitation or destruction would significantly impact society. This encompasses sectors like energy, water, transportation, healthcare, and financial services. As many of these infrastructures are now digitally controlled, they are vulnerable to cyber threats.