Bidirectional vs Unidirectional Data Flow Explained
The choice between bidirectional and unidirectional data flow shapes everything downstream: your security model, your compliance position, and how much operational flexibility your architecture actually gives you. Both approaches are well-established and genuinely...
4Secure joins Elvirian
We are delighted to confirm that 4Secure is now part of the Elvirian group! Elvirian is a European cybersecurity group delivering specialised IT and OT security solutions that protect critical infrastructure, networks, and industrial systems. Elvirian helps...
The National Risk Register 2026: what it tells us about the resilience of UK critical infrastructure
By Bernard Baker, 4Secure The UK Government’s latest National Risk Register presents a country facing risks that are both of an unprecedented nature and scale. Geopolitical instability, terrorism, extreme weather and biological threats remain prominent. But the...
The Purdue Model in 2026: Is It Still Fit for Purpose?
Few reference architectures have shaped industrial cybersecurity as durably as the Purdue Model. Introduced in 1992, it remains a useful way to think about how industrial control systems (ICS) and OT environments are segmented and where the most important trust...
IoT Security in Manufacturing: Key Risks & Solutions
Connected devices on the factory floor are generating real operational value: real-time throughput data, predictive maintenance signals, energy consumption insights. IoT Analytics reports that there will be 21.1 billion connected IoT devices globally by the end of...
Cybersecurity Threats in the Manufacturing Industry
The manufacturing sector has held an unwanted record for five consecutive years for being the most-attacked industry in the world. Understanding why that's true is where better decision-making starts. The threat picture is clear, the root causes are well understood,...
IT/OT Convergence Risks in the Energy Transition
Decentralised, renewable energy generation is reshaping how the grid works, and with it, how operators think about data. Connecting information technology (IT) systems to operational technology (OT) environments is now part of how energy operators unlock the value of...
NIS2 Compliance for Energy Operators
NIS2 introduces new cybersecurity obligations for organisations operating across the EU's critical sectors. If you’re one of them, this guide gives you a clear picture of what is required to comply, whether you run a grid, a gas distribution network, or a renewable...
How Data Diodes Protect Solar and Wind Farm SCADA Systems
Renewable energy operators run some of the most geographically distributed, remotely monitored infrastructure on the grid, and the security architecture protecting those assets needs to match that reality. This is where data diodes offer something software controls...
Forensic Data Recovery: How to Secure Evidence the Right Way
Digital evidence now features in roughly 90% of criminal cases. The global digital forensics market reflects how seriously organisations treat this capability, with Grand View Research projecting a market value of approximately USD 26.15 billion by 2030 As a business,...
