Cyber Security Services
Test your defences.
Understand your resilience.
Make informed cyber decisions.
Oxford Systems combines specialist penetration testing, NCSC-assured Cyber Resilience Audits and executive advisory services. We help you identify weaknesses, prioritise improvements and connect technical findings to business decisions.
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Understand your resilience
Assurance that informs action.
Explore the NCSC Cyber Resilience Audit scheme and the Oxford Systems service.

Penetration Testing
Our penetration testing identifies vulnerabilities in your systems, applications and infrastructure before attackers can exploit them. You receive clear findings, business impact and practical advice to prioritise remediation.
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Cyber Security M&A Audit & Review Service
Mergers and acquisitions are no longer just financial transactions—they are also technology and data-driven events where cyber risk plays a decisive role. In today's market, failing to conduct thorough cyber due diligence can result in hidden costs, regulatory penalties, and integration challenges that directly erode deal value.
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Cyber Roadmap
Our dedicated Cyber security team can assess the needs of your business and determine the most cost effective way of securing your information whilst reducing your risk.
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Cyber Essentials Certification
Cyber Essentials (CE) is a Government backed and industry supported scheme assisting businesses in protecting themselves against the ever growing threat of cyber attacks, and provides you certification demonstrating to your business partners, customers and regulators that you take cyber security seriously.
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Software Licensing Security Assessment
Test how well your software’s licensing and protection logic stands up to attempts to bypass it. Our security specialists replicate likely reverse-engineering approaches and report what was achieved, how it was achieved and ways to strengthen your application’s protection against piracy.
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Active Directory Password Audit
Identify weak passwords and patterns across your organisation’s Active Directory accounts. Our recurring audit helps your IT and security teams prioritise password changes, improve password policy and target staff awareness training with evidence from your own environment.
Find out more"As a consultant and interim technology executive, the first thing I do when I take on a new client is to review their Cyber readiness. To do this I turn to Oxford Systems as they are invaluable in assessing the client's Cyber status and translating cybersecurity risk into clear business decisions which I can communicate to the Board. Subsequently I can deploy Oxford Systems to provide trusted, enterprise-grade cyber expertise that enables resilient business growth."
Dr Ben Booth CITP, Transforming Business Through Technology
In conversation
Smart cities. Real cyber challenges.
Dr John McCarthy’s Smart Cities interview with Archer News Network, linked from his original Oxford Systems Airports biography.
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