Penetration
Testing Services

Our penetration testing services support Critical National Infrastructure (CNI) organisations in identifying, assessing, and protecting their most vital IT and OT environments.

Each engagement is carefully tailored to replicate real-world attack scenarios, reflecting how threat actors may attempt to compromise your organisation, while accounting for any specialised systems, technologies, or operational constraints unique to your environment.

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Our Penetration Testing Services

We work closely with our clients to gain a deep understanding of their business goals, priorities, and the people behind them. By aligning our expertise with your specific objectives, we design a tailored methodology, framework, and specialist team that delivers meaningful, results-focused outcomes. This approach goes beyond simply executing a test—it helps establish long-term trust and partnership.

Red Team Engagements

A sophisticated, objective-driven form of penetration testing designed to mirror real-world threat actor behavior in attempts to gain access to sensitive systems or data.

Operational Technology (OT) Penetration Testing

A preventative security assessment focused on protecting the technologies that run critical infrastructure and industrial environments.

Internal Network Penetration Testing

In-depth testing of internal networks to uncover and exploit vulnerabilities, conducted by accredited penetration testing specialists.

External Network Penetration Testing

Simulated external attacks that assess exposure across internet-facing services including hosts, devices, web applications, email systems, and FTP servers.

IT Health Check (ITHC)

A CHECK-approved IT Health Check independently audited by the National Cyber Security Centre (NCSC), providing assurance against recognised security standards.

Web and Mobile App Security Testing

Comprehensive testing of applications across all platforms, technologies, and environments to identify vulnerabilities and weaknesses.

Social Engineering Assessments

Evaluating the human element of security by simulating attacks that exploit trust, such as phishing or physical access attempts.

Build Configuration Reviews

Conducted by experienced consultants, these reviews evaluate operating systems and device configurations against industry best practices and security benchmarks.

Address high-impact vulnerabilities

Prioritise the remediation of weaknesses that attackers could realistically exploit to disrupt operations or damage the business.

Turn technical risk into business insight

Present cyber risk in clear, business-focused language to highlight impact and justify security investment.

Cut through vulnerability overload

Lower operational effort by concentrating on the vulnerabilities that present the highest level of risk.

Strengthen trust and assurance

Increase confidence among customers, regulators, and stakeholders while meeting compliance and governance requirements.

Why Your Organisation Should Conduct Penetration Testing

Penetration testing is one of the most effective ways to identify emerging cyber risks and reduce the likelihood of data breaches. Regular testing — at least annually and whenever significant infrastructure changes occur — helps ensure your security controls remain effective against evolving threats.

Key reasons to invest in penetration testing include:

Reduce the risk of data breaches and reputational damage
Support bids for commercial contracts and tenders
Achieve and maintain regulatory and compliance obligations
Demonstrate due diligence and strengthen supply chain security
Build trust and confidence with customers
Strengthen secure software development practices (SDLC)