Top CISOs in the United Kingdom in 2024

October 9, 2023

As the world continues to embrace rapid digital transformation, the importance of robust cybersecurity strategies has never been more apparent. Within organizations, the role of Chief Information Security Officer (CISO) has evolved into a critical position, responsible for safeguarding sensitive data, defending against cyber threats, and ensuring the overall security posture for its organization. In the United Kingdom, CISOs are playing a pivotal role in navigating the complex cybersecurity landscape. In this blog, we will highlight some of the top CISOs in the UK in 2024 and explore the qualities that make them stand out in this ever-changing environment.

The Growing Importance of CISOs

The rise of cyberattacks and data breaches in recent years has emphasized the need for robust cybersecurity measures. Organizations, both large and small, have recognized that a reactive approach is insufficient in the face of sophisticated threats. As a result, the role of CISOs has evolved from being a mere technical expert to becoming an integral part of the C-suite. Today’s CISOs are strategic leaders who collaborate with other business units, understand the overall business objectives, and align their security strategies accordingly. Their expertise is sought not just for protecting the organization’s digital assets, but also for maintaining customer trust and complying with ever-changing data protection regulations.

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Top CISOs in the UK

Shaun Van Niekerk 
A professional with over 25 years of rich experience in IT and Cybersecurity. This is seen with the distinguished title of Certified Information Systems Security Professional (CISSP). Specializing across diverse domains, ranging from Technical Infrastructure and Project Management to Cyber Architecture and Risk Management. Shaun seamlessly blends strategic insight with hands-on implementation. His skill set is a testament to his ability to bridge the gap between visionary strategy and pragmatic execution. 

Raphael Narezzi
A seasoned IT veteran with a trailblazing journey spanning two decades across diverse sectors. Armed with an MSc in Cyber Security, Rafael isn’t just knowledgeable; he’s a recognized luminary and a dynamic speaker in the field. Currently, he’s the Chief Technology Officer of CF Partners, a pioneering force in risk management, trading, and asset management within the commodities domain. He spearheads the development and delivery of high-impact technology and data solutions that resonate with the company’s mission and vision. 

Channi Simms
A prominent figure in the field of cybersecurity, has earned a well-deserved place among the top cybersecurity influencers in the UK. Her accomplishments include being recognized as one of the “Top 50 Most Influential Women in Cybersecurity” by SC Media UK in 2019, as well as securing the coveted “Woman Information Security Professional” award at the (ISC)2 Information Security Leadership Awards. Simms also emerged as the leading influencer in security and fire by IFSEC Global, ranking first in the “Ones-to-Watch” category. Channi is the driving force behind Meta Defence Labs, she spearheads a range of information security solutions that prioritizes secure and privacy-centric design strategies. Her expertise extends to guiding organizations in implementing robust cybersecurity strategies, attaining certifications such as Cyber Essentials, ISO 27001, and GDPR readiness, and conducting vulnerability assessments and security audits. Simms’ contributions to the cybersecurity landscape are not limited to her professional endeavors. She has demonstrated a strong dedication to sharing knowledge and empowering the next generation of cybersecurity leaders. Her brainchild, the SHe CISO Exec Cybersecurity Leadership Empowerment program, aims to nurture emotionally intelligent cybersecurity leaders on a global scale.
Channis’ multifaceted experience encompasses roles as a Privacy & Information Security Professional, a Computer Hacking Forensics Investigator (CHFI), and certifications in ISO 27001, IASME Cybersecurity Framework, and more. With a comprehensive skill set that includes ethical hacking, project management, and infrastructure security solutions, she stands as a trusted partner in enhancing cyber resilience and fostering a safer digital landscape.

Vincent Cook
Introducing Vincent Cook, a leader in developing resilient cybersecurity frameworks for businesses and governments, countering emerging threats through innovative solutions. His fervor led to the birth of the Instant Close Digital Protection (CDP) platform. As CYB3R OPERATIONS’ Founder and CEO, Vincent leads a committed team offering 24/7 threat intelligence detection, monitoring, and response. Their bespoke solutions shield businesses, executives, and individuals from data breaches, identity theft, social media perils, and the dark web.

Greg Day
In the realm of security risk management, Greg Day emerges as a guiding force for organizations across the private and public sectors. With a wealth of hands-on and consultative expertise spanning business and technical domains, he equips executives with invaluable insights essential for navigating the intricate landscape of threats and security challenges. Greg’s reputation as a industry-leading professional, coupled with his extensive experience and unwavering dedication, positions him as a preeminent speaker on global cyber-security matters in Europe. His prolific contributions to journals, numerous published papers, and role as a keynote speaker at conferences and events underscore his profound influence on all facets of information security.

Chelsea Jarvie
Meet an extraordinary Chief Information Security Officer, renowned for her prowess in cyber transformation and building security functions from scratch. From leading incident response and project support to elevating risk management, she’s a driving force for modern security practices. But her influence doesn’t stop there – she’s a dedicated advocate for diversity in the digital realm. A seasoned conference speaker and esteemed judge for the Scottish Cyber Awards, she’s been recognized as a “Woman of the Future” by Equate Scotland and a standout talent as Code First Girls’ “One to Watch” in 2017. Among her many achievements, she secured the UK Computer Science Undergraduate of the Year 2015 title and emerged as a finalist in the Scottish Cyber Awards 2016. Armed with a First Class Honours degree in Ethical Hacking and Countermeasures from Abertay University, Dundee, she’s a force to be reckoned with.

Chris Cooper
Chris Cooper is a seasoned cyber security professional with over two decades of experience. He has worked in various roles, including Chief Information Security Officer (CISO), and has advised Boards and Executives on cyber security strategy and investments. Chris emphasizes the positive impact of cybersecurity on businesses and offers innovative solutions to support growth. He’s a mentor, advocate for diversity and inclusion, and a key figure in the cyber security field.
His primary focus lies in advising Boards and Executives on cyber security strategy and investments. Chris is known for his innovative approach to using cyber security as a tool to support, grow, and enhance businesses. His strategic advice and consultancy services are tailored to address the specific cyber security needs of each business environment.

Key Qualities that Distinguish Top CISOs 

Key Qualities that Distinguish Top CISOs 

Visionary Leadership: Effective CISOs align cybersecurity strategies with business objectives, showcasing visionary leadership. They communicate security’s significance to stakeholders, employees, and customers.

Technical Expertise: A strong technical foundation allows a capable CISO to comprehend modern threats and solutions. Informed decisions about security tools and technologies are enabled by this knowledge.

Collaboration and Communication: Leading CISOs cultivate collaboration, partnering with IT teams, executives, and stakeholders to integrate security throughout the organization. Their adept communication bridges the gap between technical and non-technical audiences.

Risk Management: Assessing and managing risks is central to a CISO’s role. Effective prioritization of threats, considering potential impact, ensures resources are wisely allocated to counter the most critical risks.

Continuous Learning: Recognizing the ever-changing cybersecurity landscape, top CISOs prioritize continuous learning. Staying current with trends, emerging technologies, and threat vectors enables them to adapt strategies accordingly.


In the face of ever-increasing cyber threats, the role of CISOs in the United Kingdom has become indispensable to the success and security of organizations across all sectors. The top CISOs in the UK exemplify visionary leadership, technical expertise, and a commitment to collaboration that sets them apart in the dynamic cybersecurity landscape. By prioritizing innovation, risk management, and continuous learning, these leaders are shaping the future of cybersecurity, safeguarding the digital landscape, and inspiring a new generation of security professionals.