Service
Expert-led penetration testing that goes beyond automated scanning to identify, validate and demonstrate the vulnerabilities and attack paths that could put your organisation, data and services at risk.
Understanding penetration testing
Penetration testing is a controlled assessment that identifies and validates vulnerabilities across your systems, applications and infrastructure, showing what an attacker could realistically achieve. We combine automated tooling, manual investigation and real-world attack techniques to validate findings, assess their impact and identify attack paths created by combining weaknesses.
The result is clear, evidence-based insight into your exposure, helping you understand genuine risk and prioritise remediation.
Benefits of penetration testing
Knowing that vulnerabilities exist is only the starting point. Penetration testing shows whether those weaknesses can actually be exploited, what an attacker could achieve, and where your organisation faces the greatest real-world risk.
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Vulnerability scanners can identify potential weaknesses, but they cannot always determine whether those weaknesses can be exploited in your environment. We validate findings through manual testing and controlled exploitation, separating theoretical vulnerabilities from weaknesses that represent a genuine security risk.
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A penetration test puts your systems under the same scrutiny an attacker would apply. We investigate exposed services, applications, authentication mechanisms and other potential entry points, looking for ways to gain access, move through the environment and reach valuable systems or data.
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Serious compromises rarely depend on a single vulnerability. Individually minor weaknesses can become significant when they are combined with other flaws, access opportunities or configuration issues. We investigate these relationships to show how an attacker could chain weaknesses together and what that could ultimately expose.
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A long list of vulnerabilities does not tell you where to focus first. We assess findings in the context of your organisation, considering exploitability, potential impact and how weaknesses can combine. This gives your technical and security teams a clearer basis for deciding what needs attention first.
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Security decisions are easier when they are supported by evidence. A penetration test provides an independent assessment of how your security performs against realistic attack techniques, helping you understand your current exposure and give stakeholders, customers and leadership greater confidence in the controls protecting your organisation.
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Testing does not have to end with the report. Once weaknesses have been addressed, focused or full retesting can independently verify that vulnerabilities have been remediated and that changes have not introduced new exposure. This turns a point-in-time test into a stronger cycle of security assurance.
When to test
Penetration testing is not only for when something goes wrong. The right time to test is often when your environment, responsibilities or security requirements change. Independent testing provides evidence of your security posture when you need confidence to make an important decision.
Test new applications and services before they become part of your production environment or are exposed to customers and users. Identifying vulnerabilities before launch gives your teams an opportunity to address weaknesses before they become an operational security issue.
Major changes to infrastructure, networks, applications or the way systems interact can introduce new attack paths or invalidate previous assumptions. Testing after significant changes provides evidence that the security of the environment remains appropriate as it evolves.
A penetration test can provide independent evidence of the security risks associated with a new organisation, service or technology before a significant commercial commitment is made. It can help identify vulnerabilities and exposures that may otherwise remain hidden during due diligence.
Customers, partners and procurement teams may require independent penetration testing as part of their security requirements. Where a contract specifically requires testing by an NCSC CHECK provider, we can help establish the appropriate scope and deliver the required infrastructure or web application assessment.
Some regulatory frameworks, industry requirements and security standards call for regular or independent security testing. We can help you understand the testing requirement, define an appropriate scope and provide evidence that can support your wider assurance and compliance activities.
Significant security events or changes can be a reason to reassess your exposure. Testing can help establish whether vulnerabilities remain, identify related weaknesses and provide independent evidence of the security position following remediation or changes to the environment.
Security is not static. Regular penetration testing provides recurring independent assurance that your security posture continues to withstand realistic attack techniques as systems, applications and threats change. Annual testing can form part of a wider programme of continuous security assurance.
Sometimes the reason to test is simply the need for an independent view. Whether you need to provide assurance to customers, support an audit, satisfy leadership or make an important security decision, a penetration test provides evidence of how your systems perform when subjected to controlled attack.
What we test
We test the technologies that make up your attack surface, using a combination of automated tooling, manual techniques and experienced security testing to identify vulnerabilities and understand how they could be exploited.
We assess internet-facing and internal infrastructure for vulnerabilities, insecure configurations and weaknesses that could allow an attacker to gain access, escalate privileges or move through your environment.
We test web applications for vulnerabilities across authentication, authorisation, session management, input handling, business logic and other application-layer weaknesses, looking beyond automated findings to identify exploitable attack paths.
APIs can expose sensitive functionality and data without a traditional user interface. We test authentication, authorisation, input validation, access controls and business logic to determine what an attacker could access or manipulate.
We assess cloud environments for exposed services, insecure configurations, identity and access control weaknesses, excessive permissions and paths that could allow an attacker to move from an initial foothold to more sensitive resources.
Where required, we can assess mobile applications and their supporting services, examining authentication, data storage, communications, application logic and the APIs the application relies upon.
We can assess network architecture and wireless environments for weaknesses that could provide unauthorised access, expose sensitive systems or enable further compromise from an attacker’s initial position.
We test whether users can access functionality or information beyond what their role permits, including authentication weaknesses, privilege escalation, insecure session handling and broken access controls.
How we test
Our penetration tests combine established testing methodologies with the judgement and experience of security practitioners. We use automated tooling where it adds value, but the assessment is driven by what we find and what an attacker could do with it.
We agree exactly what is being tested, what success looks like and where the boundaries are before testing begins. Explicit scope and clear objectives help ensure the assessment answers the right questions without unexpected impact.
We identify the systems, technologies, functionality and attack surface available within the agreed scope. This gives us a clear understanding of the environment before we begin deeper testing.
We combine appropriate automated tooling with manual investigation. Automated testing provides useful coverage and helps identify common weaknesses, while manual testing allows us to investigate application behaviour, business logic and attack paths that scanners cannot understand.
We validate identified vulnerabilities to establish whether they are genuine and understand their potential impact. Where appropriate, we demonstrate exploitation safely and proportionately, avoiding unnecessary disruption to production systems or services.
We investigate how individual weaknesses can be combined to determine whether apparently minor issues create a meaningful route to compromise. This allows findings to be assessed in the context of what an attacker could actually achieve.
We maintain communication throughout the engagement. Serious findings, unexpected access and scope issues are communicated promptly rather than waiting until the final report, so there are no unnecessary surprises.
Findings are supported by clear evidence, technical detail and practical context. We explain what we found, why it matters, how it could be exploited and what should be done to address the underlying risk.
Our deliverables
A penetration test should give you more than a list of vulnerabilities. Our deliverables provide the technical evidence, business context and practical information your teams need to understand the findings, prioritise remediation and demonstrate the security of your environment to stakeholders.
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Detailed findings covering scope, methodology, risk, evidence, impact, attack paths and practical remediation recommendations.
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A concise overview of the security position, key vulnerabilities, attack paths and business impact, suitable for leadership, customers and other stakeholders.
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Findings supplied in your preferred format, including severity, affected assets, references and remediation status to support vulnerability management.
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Tell us what you need to test and we’ll help define the right penetration test for your environment, objectives and risk.