Detection Is In The Detail

Protecting organisations from the constantly evolving cyber landscape with our industry-leading detection capability.




Managed Cyber Security
for Peace of Mind.

Our Security Operations Centre (SOC) delivers an array of services that ensure a robust end to end cyber security service, from monitoring services to threat relevant content, from leading threat intelligence to a customer focus that enables us to be your security partner. We employ a leading team of cyber engineers, and analysts, threat intelligence experts, content developers, architects, support engineers and customer focused delivery managers from varying backgrounds, meaning we are always on the cutting edge when it comes to understanding and operating within the ever-changing threat landscape, with our customer’s requirements and strategy at the heart of our operation.

Managed Security Service

Partnering with our customers to manage the business risks that they are exposed to in the day to day delivery of their services.

    • Managed Detection and Response (MDR) through our 24x7 security monitoring service.
    • Endpoint Detection and Remediation.
    • Fully inclusive SIEM and Playbook development.
    • Threat Intelligence.
    • Access to security consultants.

Using SOAR to complement our customers environment by enriching their ability to highlight risks and how to remediate them.

    • Playbook Development – for a customer’s own SOAR solution
    • Data Enrichment – to deliver a fully informed decision tree to customers
    • Security Remediation – ability to resolve risks for customers
Security Consulting

Utilising our expertise and resources to work with our customers in discussing improvements to their security posture.

    • Cyber and SOC Diagnostics
    • Compliance
    • Security advice
    • Audit
    • Penetration Testing
Threat Intelligence

With our best in breed Threat Intelligence service we work with our customers on the latest threat relevant information available, the impact that these could have on your business and the steps to remove these risks posed.

    • Threat Relevant Advisories.
    • Open Source Intelligence reporting.
    • Signatures.
Incident Response

Responding to an incident with market leading analysis of what has happened, how it happened and how to resolve. We also enable businesses to prepare for this threat and how to help their teams protect themselves against it or ideally avoid it.

    • Forensic Analysis – including evidence acquisition; attack attribution; malware & email analysis; threat research and remediation advice.
    • Incident Response retainers.
    • Readiness Assessment.
    • Table-top Exercises.
    • Threat Response Training.
Hybrid Services

We recognise that many of our customers have their own security services, therefore we offer a hybrid service to complement these in order to minimise customer risk and maintain a robust end to end security delivery.

    • Hybrid SOC – delivering Out of Hours coverage.
    • Hybrid SOAR – delivering our playbooks on your service.
    • Hybrid SIEM Content – delivering our content to your SIEM platform.
    • Hybrid Threat Intelligence – delivering our knowledge against your service.



About Us

Who are SY4 Security?

A Managed Security Service Provider (MSSP) with a wealth of experience earned in the defence and commercial sectors. We help organisations of all sizes build cyber-security capabilities and maintain compliance through practical consulting and managed services. Our suite of services weaves together best-in-breed technologies to provide real time 24×7 monitoring, triage, remediation, threat assessment, vulnerability management, and professional services to give our clients absolute peace of mind that their critical environments are protected.

Where we have come from

SY4 Security is forged from the BAE Systems commercial Managed Security Services (MSS) business,  SY4 believes in delivering security services to the very highest level of protection to customers around the world. This led to us being recognised in the Magic Quadrant for 6 consecutive years. 

While new in name, we maintain our philosophy to strive for excellence, and do so by employing the very best people, processes, partnerships and technologies that enable SY4 Security to continue to deliver market leading services to new and existing customers. For example, our continued threat intelligence partnership with BAE Systems allows us to maintain the highest levels of threat relevance for each and every client.

Our credentials

We have been delivering robust, enterprise-level, cyber security monitoring services since 2012.  Originally, as BAE Systems Applied Intelligence, we constructed our service to provide protection and cyber support for the London Games.  From here we started developing and delivering these world class services to organisations around the world.  This is a service that we continue to deliver as SY4 Security, working to the same exacting standards and processes, working with market leading toolsets available in the market, with the best team of cyber experts.  We stay true to our roots and the philosophy we have lived by since 2012.



Our philosophy for this service is based on its cyclical nature, the provision of a strong platform to deliver the service from, with leading industry and globally identified threat-relevant intelligence to help manage risk and a dynamic content provision to articulate these risks to customers that enable outcome based results. The ever-evolving content is then pushed back into the service thereby ensuring its continued real-time relevance and continuous impactful security outcomes





SY4 Security was founded as a result of a Management Buyout from BAE Systems Applied Intelligence EMSS. The executive team is the same team that was managing the EMSS business for over 6 years.

CEO & Co-Founder

Mike Brown

Mike Brown led the opportunity to divest the Enterprise Managed Security Services business unit from BAE Systems Applied Intelligence. As Chief Executive Officer, Mike brings to SY4 Security more than 30 years of experience as a global executive. He has a demonstrated track record of value creation through experience and operational excellence. Mike is recognised for his success in helping companies–in high-growth technology and Software-as-a-Service–scale globally and innovatively. His leadership and experience were developed working with large global technology leaders such as IBM, Oracle, and Siebel, and also with small, high-growth security companies including Solidcore, Algosec, and Siemplify.

At SY4 Security, Mike challenges all team members to push past the status quo and discover innovative security services and solutions for today’s complex cyber threat landscape.

COO & Co-Founder

Keven Knight

Keven Knight led the opportunity to divest the Enterprise Managed Security Services business unit from BAE Systems Applied Intelligence. As Chief Operations Officer, Keven is responsible for the SY4 Security business. Within his role, he oversees the SY4 product portfolio, client services, and operational delivery. Prior to SY4 Security, Keven played a pivotal role with BAE Systems for seven years where he managed and grew the EMSS business unit and positioned it as a leader in the MSSP market. Keven comes from a strong Service Delivery background, developed and enhanced through blue chip organisations such as IBM, ICI, and AT&T. With a history of designing and implementing global delivery models and projects, Keven leverages his wealth of experience to ensure a modern, agile, and collaborative approach to the customers that SY4 Security serves.

Global Sales Leader

Andy Bristow

Andy Bristow is the Global Sales Leader, responsible for overall revenue growth of the SY4 Security business.  Andy is part of the founding team of SY4, joining from BAE Systems Applied Intelligence where he led the Sales and pre-sales teams in selling both cyber consulting and managed security services to new and existing clients. Andy has enjoyed a very successful sales and leadership career spanning over 25 years, working at both large corporates and smaller cyber service organisations, including;  Digital Equipment Corp, Compaq, Fujitsu Services, Vistorm and Hewlett Packard. Today, Andy brings that experience to bear, by building out a team focused on driving new business through impactful partner relationships and world class cyber service offerings.

Director Of Operations

Gareth Norman

Gareth Norman is the SY4 Security Operations Director. He is responsible for the day-to-day technical service delivery and back-office functions. … He is part of the founding team of Sy4 Security, joining from BAE Systems Applied Intelligence where he honed his background of Operations and built the teams responsible for the first-line security triage with the Security Operations Centre (SOC). Gareth comes from a heritage of enterprise-scale service operations and managed service delivery. He has worked with a major telco in EE and global IT managed services with T-Systems where he was responsible for the operational delivery of one of the world’s largest cloud-hosted Exchange environments for BP. This and other technological deliveries ensure he and his global team will deliver the highest level of operational service quality. At the heart of everything he and his team do are good process, strong inter-team delivery, and an ethic of excellent customer experience.

Director Of Client Services

Phil Phillips

Phil Phillips is the SY4 Security Client Services Director and is responsible for our customer-facing services. He joins SY4 after 6 years at BAE Systems Applied Intelligence where he led the Enterprise Managed Security Delivery function and brings across over 20 years’ experience of managing complex customer engagements. During his career he has been responsible for the transformation of a number of outsourced IT services and is expert at implementing long-lasting improvement programs having worked with customers such as Oracle, ING Barings, G4S and Highways England. At SY4, he is accountable for ensuring the high quality and value of the services we deliver and, through the management of the Service Delivery and Program Management functions, is responsible for assuring that our customers’ needs are met to the standards that they expect.

Architecture Director

Liam Salsi

Liam Salsi is the Architecture Director at SY4 Security and leads SY4’s architecture function governing the design and engineering of secure security services. Liam is part of the founding team of SY4, joining from BAE Systems Applied Intelligence where he led the Architect and Onboarding consultancy team for the Enterprise Managed Security Service’s Security Operations Centre (SOC). Within BAE Systems Liam has led design and build of security products and services, including Commercial and Nation State SOCs and provided Security Architecture and Design consultancy to both commercial and military customers. Prior to BAE Systems, Liam was the Design and Technical Authority for a range of secure military capabilities in his tenure with Hewlett Packard Enterprise Services (and formerly Electronic Data Systems).


Contact Us

SY4 Security welcomes the opportunity to engage as a partner with you and your business. So, if you have a known cyber security risk or a challenge for us to find these risks for you, then please contact us through

SY4 Security

The Hub, Fowler Avenue,
Farnborough Business Park,
Farnborough, Hamps, GU14 7JF

SY4 Security

Marshall Mills, Marshall Street,
Holbeck, Leeds City Centre,
West Yorkshire, LS11 9YJ