We’re a team of cyber security specialists with decades of enterprise and public sector experience. Our expertise spans the full spectrum of cyber security services, from C-level consultancy and risk governance to technical assessments, red teaming, incident preparedness and incident response.
We have over 20 years of experience at the forefront of enterprise security, helping organisations strengthen resilience, maintain compliance and respond effectively to real-world threats. Whether organisations need to test their defences, assess their risk postures or manage ongoing protection through our managed services, we provide the depth of capability and practical experience to support at every stage of the cyber security journey.
To deliver cutting-edge cyber security solutions with passion & care building lasting partnerships with our clients, solving complex challenges whilst fostering a culture of intellectual challenge and growth.
Our vision is to lead the field in enterprise cyber security, helping organisations maintain control and continuity in a shifting risk environment.
High quality
No compromises – every engagement is meticulously planned and delivered to the highest professional standard.
Responsive
We adapt quickly to evolving threats and client needs, operating with agility and clarity.
Trusted
Our clients know they can rely on us, because we act with integrity and transparency.
Personable
Our team are not only knowledgeable, but can collaborate, communicate and inspire confidence.
Founder and Chief Executive Officer
Phil is the Founder and Chief Executive Officer of Prism Infosec, he is responsible for the overall direction, strategy and management of the organisation.
Phil has worked in cybersecurity his entire career to date, spanning four decades. Over this time, he has developed a broad mix of experience, including the delivery of in-depth technical penetration testing as well as providing Governance, Risk and Compliance services to organisations worldwide.
Phil is a Chartered Engineer, Chartered Member of the British Computer Society as well as the UK Cyber Security Council. He is a CISA, CISSP and PCI QSA. Additionally, he has been instrumental in the foundation and/or operation of multiple cybersecurity organisations and schemes in the United Kingdom, including CREST and the Tiger Scheme. He is currently a registered skills assessor for the Cyber Scheme and the UK Cyber Security Council.
Chief Commercial Officer
Andrew is the Chief Commercial Officer at Prism Infosec. He brings a wealth of experience in cybersecurity and commercial leadership.
He holds a degree in Computer Information Systems Design from Kingston University and most recently served as Vice President of Sales, EMEA at VikingCloud. Prior to that, he held senior commercial roles at leading cybersecurity consultancies including F-Secure and Context Information Security, where he was instrumental in driving growth and expanding market presence.
Chief Operating Officer
Bradley is the Chief Operating Officer at Prism Infosec. He has over 15 years of experience in offensive security leading penetration testing, ITHCs, and red teaming to numerous government departments at the highest levels.
He managed the testing teams delivering key testing of HMRC’s cloud migration (AWS & Azure) project over 3 years, assuring both architectural designs as well as practical implementations including PKI. He also managed the testing team delivering the ITHCs and security testing against NHS App and the nightingale hospitals stood up during the COVID-19 pandemic.
Bradley sits on the steering committee for CREST Penetration testing, providing input into current and future standards.
Head of IT & Remediation Services
Ollie is Head of IT & Remediation Services at Prism Infosec. He has a background spanning IT operations, system administration and security-focused remediation.
He began his career in hands-on support roles – replacing peripherals, troubleshooting hardware and providing independent break/fix services for individuals and small businesses. From there, Ollie progressed into various IT engineering roles – responsible for the upkeep of back-office systems and designing end user computing solutions across on-premises, hybrid and cloud environments.
In his current role, Ollie leverages his experience across SMB & enterprise scale environments to lead client remediation efforts aimed at eliminating vulnerabilities, mitigating risk and strengthening security posture. He works closely with technical teams and stakeholders to design and implement practical, lasting solutions that enhance security and operational resilience.
Project Management Office Lead
With two years of experience at Prism Infosec, Kezia leads the PMO team in delivering successful projects that meets our clients’ needs.
Kezia’s journey into project management for Cyber Security came after a career in Casting and Producing for Professional Theatre. This transition allowed Kezia to blend her passion for working with people, solving complex problems, and ensuring smooth project delivery.
Alongside her colleague Sophie, they oversee the project process—from commercial sign-off through pre-test setup, project execution, and reporting for every Prism project. Kezia takes pride in collaborating closely with our clients to ensure projects are delivered to their expectations, on time, and with impactful results.
Head of Red Team
David is Head of Red Team at Prism Infosec.
David leads advanced adversary simulation services for clients in highly regulated sectors. With over a decade of experience in cybersecurity, he has deep expertise in infrastructure penetration testing, red teaming, and incident response.
David has held senior positions in both government and private industry, including roles at QinetiQ and Nettitude (now LRQA). He has advised the UK Cabinet Office on cybersecurity testing for central government, served as a CHECK Technical Assessor for the NCSC, and currently acts as a CREST Assessor for the CREST Certified Red Team Manager (CCRTM) exam.
Recognised by regulators as a subject matter expert in red teaming, David has delivered complex engagements for critical infrastructure and financial services clients. He also shares his expertise through industry speaking engagements, including BSides London (2024) and BSides Birmingham (2025), and contributes regularly to thought leadership initiatives.
Tech Team Lead
Alexis is Tech Team Lead at Prism Infosec. He is a senior consultant with over 13 years’ professional experience within the security industry and has worked with several security consultancies including MDSec and A&O Corsaire.
Alexis has a background in software development and has used this to develop tools and training material specifically focused on security, this has included building custom extensions for widely popular testing tools such as PortSwigger’s Burp Suite. Alexis has also delivered web application testing training at the major security and hacking conference ‘Black Hat’ for two years.
Alexis has performed technical security assessments for government, financial, software and other commercial and non-commercial sector customers including FTSE 100 companies. These security assessments include a range of testing services, including Application, Web-Services, Infrastructure and Mobile testing.
Finance Manager
Steve is Finance Manager at Prism Infosec. He has worked in senior finance roles across several industries including the arts, entertainment, sports, hospitality, and financial services sectors. Steve is a Fellow of the Association of Accounting Technicians.
Steve is responsible for overseeing the day-to-day operation of the finance team and manages the month-end accounting process, payroll, cashflow and forecasting. He also works with our CFO and Senior Leadership Team to deliver financial performance reporting and analysis.
Alongside his colleague Chris, the finance team also manage the client billing process and credit control.
Some clients come to us after an incident, others are preparing for change or planning ahead. Wherever you are on your cyber security journey, our expert-led services are built to support you.
Prism Infosec focuses on clarity, action and long-term resilience. Working as a trusted partner to all shapes and sizes of organisations, we’re not just a provider – every engagement is shaped around your goals and real-world outcomes.
Understand your current posture and strengthen your defences. We can help you get ahead of the risks with tailored testing, preparedness services and red teaming.
Take control when incidents strike and recover with the confidence to move forward. Specialist support to help you respond to cyber threats and restore operations quickly.
Build long-term resilience with ongoing support and consultancy. From strategic governance to fully managed SOC services and incident response retainers, we’ll help you stay ready.
Experienced, personable cyber security professionals who want to do meaningful work at the highest level, please click to explore careers at Prism Infosec.
Whether tackling a specific challenge or reviewing wider strategy, Prism Infosec brings the experience and practical support required to help organisations manage cyber security risk with confidence.
© Prism Infosec Ltd 2025, a company registered in England and Wales #5985734. VAT Registration Number: GB 879 7957 24
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