‘Secure by design’ must become the new norm for mission-critical infrastructure

It is no secret that cyber security is a priority for all sectors, as threats evolve in terms of frequency, scale, and sophistication. However, for Operators of Essential Services (OESs), this is just part of a larger, more complex picture. With the ongoing convergence of IT and OT and the resulting drive for an integrated approach to physical and cyber security, combined with increasingly complex compliance obligations, a more considered approach to the design and implementation of security ecosystems is needed.

It’s no accident that we at Vysiion describe our delivery process, service and solution portfolio in this way – not just in relation to the cyber components of the delivery, but the systems, controls, and governance, used in our delivery of mission-critical infrastructure into the most challenging environments, for the most stringently regulated sectors.

The Vysiion view, robust security is not a retrofit – it needs to be inherent in both approach and design, consider process and controls, hardware, and software, and ensure stakeholders are aware of their roles and responsibilities.

So, taking a step back and considering how this works in practice, and from the earliest stages of a project…

An established project management methodology will include the creation of a risks and methods document, ensure the right security and risk management specialists have been engaged, and that processes are in place that follow best practice throughout each phase of delivery. A ‘secure by design’ approach, takes this further, considers the full range of IT and OT security systems and processes that will overlay every element of the project – validated against the relevant frameworks and regulations, with the latest threat intelligence used to pinpoint the areas of greatest risk. Crucially, this includes all elements of the proposed supply chain, as these represent an increasingly common target for cyberattacks as a means of gaining backdoor access to critical data and infrastructure.

A rigorous, standards-based approach is essential, as OESs regulatory obligations are rapidly evolving in response to the complexity of IT/OT systems, with regulations like NIS (2018) reflecting the larger attack surface created by this new breed of infrastructure.

As such, the following standards should be considered as the baseline for establishing secure, integrated IT and OT systems:

Do not make assumptions here. The regulatory environment is increasingly rigorous, with standards and frameworks extending to organisations and market verticals previously exempt. For example, some manufacturers are now regarded as part of the UK’s CNI sector and must be able to demonstrate appropriate and proportionate consideration has been given to the same regulatory and compliance goals.

Once the applicable standards have been identified, their robust principles can be adopted throughout the design and implementation phases and beyond, utilising proven methodologies like the Purdue Model to ensure dataflows and physical assets are identified and documented, and proactive monitoring of the potential attack surface is maintained (automated, where appropriate). This should be subject to regular review using collated security data and the most up-to-date threat intelligence, and supported by a responsive maintenance capability, 24/7 support and monitoring, and regular audit.

The actual execution and impact of this approach will naturally vary from project to project and sector to sector, but it is essential that all OESs, their technology partners, and all organisations acting as part of their supply chains are ready and willing to adopt these principles, not only to fulfil their specific compliance obligations, but to ensure their services remain secure and available to citizens across the UK.

In this way, the ‘secure by design’ approach represents a powerful investment in your organisation’s future, ensure the availability and integrity of the critical product or service you provide.

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Meet the team

Jill Broom

Head of Cyber Resilience, techUK

Jill leads the techUK Cyber Resilience programme, having originally joined techUK in October 2020 as a Programme Manager for the Cyber and Central Government programmes. She is responsible for managing techUK's work across the cyber security ecosystem, bringing industry together with key stakeholders across the public and private sectors. Jill also provides the industry secretariat for the Cyber Growth Partnership, the industry and government conduit for supporting the growth of the sector. A key focus of her work is to strengthen the public–private partnership across cyber to support further development of UK cyber security and resilience policy.

Before joining techUK, Jill worked as a Senior Caseworker for an MP, advocating for local communities, businesses and individuals, so she is particularly committed to techUK’s vision of harnessing the power of technology to improve people’s lives. Jill is also an experienced editorial professional and has delivered copyediting and writing services for public-body and SME clients as well as publishers.

Email:: [email protected]
Website:: www.techuk.org/
LinkedIn:: https://www.linkedin.com/in/jill-broom-19aa824

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Annie Collings

Programme Manager, Cyber Resilience, techUK

Annie is the Programme Manager for Cyber Resilience at techUK. She first joined as the Programme Manager for Cyber Security and Central Government in September 2023.

In her role, Annie supports the Cyber Security SME Forum, engaging regularly with key government and industry stakeholders to advance the growth and development of SMEs in the cyber sector. Annie also coordinates events, engages with policy makers and represents techUK at a number of cyber security events.

Before joining techUK, Annie was an Account Manager at a specialist healthcare agency, where she provided public affairs support to a wide range of medical technology clients. She also gained experience as an intern in both an MP’s constituency office and with the Association of Independent Professionals and the Self-Employed. Annie holds a degree in International Relations from Nottingham Trent University.

Email:: [email protected]
Twitter:: anniecollings24
LinkedIn:: https://www.linkedin.com/in/annie-collings-270150158/

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Francesca Richiusa

Programme Team Assistant for Public Sector Markets, techUK

Fran serves as the Programme Team Assistant within techUK’s Public Sector Market Programmes, where she is responsible for delivering comprehensive team support, managing administrative functions, and fostering strong relationships with members.

Prior to joining techUK in May 2025, Fran built a meaningful career in the charitable and local government sectors. She worked extensively with both victims and perpetrators of crime, and notably led the coordination of Domestic Homicide Reviews across Surrey—an initiative aimed at identifying lessons and preventing future incidents of domestic abuse.

Outside of work, Fran is an avid traveller and a proud cat mum who enjoys unwinding with her feline companions.

Email:: [email protected]
Website:: www.techuk.org/
LinkedIn:: https://www.linkedin.com/in/francesca-richiusa/

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Olivia Staples

Junior Programme Manager - Cyber Resilience, techUK

Olivia Staples joined techUK in May 2025 as a Junior Programme Manager in the Cyber Resilience team.

She supports the programs mission to promote cyber resilience by engaging key commercial and government stakeholders to shape the cyber resilience policy towards increased security and industry growth. Olivia assists in member engagement, event facilitation and communications support.

Before joining techUK, Olivia gained experience in research, advocacy, and strategic communications across several international organisations. At the Munich Security Conference, she supported stakeholder engagement and contributed to strategic communications. She also worked closely with local and national government stakeholders in Spain and Italy, where she was involved in policy monitoring and advocacy for both public and private sector clients.

Olivia holds an MSc in Political Science (Comparative Politics and Conflict Studies) from the London School of Economics (LSE) and a BA in Spanish and Latin American Studies from University College London (UCL).

Outside of tech, Olivia enjoys volunteering with local charities and learning Norwegian.

Email:: [email protected]
Website:: www.techuk.org/
LinkedIn:: https://www.linkedin.com/in/olivia-staples-85119117a/

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Tracy Modha

Programme Marketing Assistant for Public Sector Markets, techUK

Tracy supports the marketing of several areas at techUK, including Cyber Exchange, Central Government, Cyber Resilience, Defence, Education, Health and Social Care, Justice and Emergency Services, Local Public Services, Nations and Regions and National Security.

Tracy joined techUK in March 2022, having worked in the education sector for 19 years, covering administration, research project support, IT support and event/training support. My most outstanding achievement has been running three very successful international conferences and over 300 training courses booked all over the globe!

Tracy has a great interest in tech. Gaming and computing have been a big part of her life, and now electric cars are an exciting look at the future. She has warmed to Alexa, even though it can sometimes be sassy!

Email:: [email protected]
Phone:: 02073312000
Website:: www.techuk.org
LinkedIn:: https://www.linkedin.com/in/tracymodha83

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‘Secure by design’ must become the new norm for mission-critical infrastructure

Peter Clapton

techUK’s Operational Technology Security Impact Days 2025 #techUKOTSecurity

Responding to Ransomware Threats to the UK's Operational Technology Systems