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Penetration testing

Web, mobile, infrastructure and continuous penetration testing services, finding your vulnerabilities fast.

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The right scope, the right priorities, the right findings, the right actions.

Access a large team of highly skilled, experienced resource - organised around your needs.

Our Pen Testing Portfolio.

Infrastructure penetration testing


Enhance the security in the technology that could provide unauthorised access or entry into private areas of your network and to your sensitive data.

Web application penetration testing


Available to hackers 24x7 and brim-full of data, web applications present a tempting target. We provide clear reports with steps to reproduce vulnerabilities, exploitation probability and actionable recommendations.

Mobile application penetration testing


With the huge proliferation of mobile applications comes the need for robust security testing. We identify vulnerabilities and validate that your application is secure.

Red Team exercises

Red Teaming

This usually includes assessments with specific objectives in mind in order to simulate tactics, techniques and procedures used by real world adversaries.

Cloud Security

Cloud Security

Test the applications and infrastructure you host in public cloud environments, including security assessments of your cloud environment configurations.

Continuous Security Testing


Gain insight into vulnerabilities significantly faster than through traditional penetration testing and see new high-impact vulnerability issues as they arise.

Social Engineering

Social Engineering

Typical social engineering engagements include managing phishing campaigns, testing your physical entry procedures, baiting and watering-hole attack, all to ensure you are maximising the protection within your organisation.

Code Review

Code Review

In depth security review of your source code by using a combination of manual and automated checks to look for any security flaws and insecure coding practices inside your source code which can lead to serious security risks.

Our customers say...

I have always been impressed with NotSoSecure’s advisory and penetration testing services as well as their ethical hacker training. NotSoSecure’s ethical hackers are highly-skilled specialists, use up-to-date methods, and transparent about their work. Trustworthiness, dependability, and quality all there in addition to the articulation of the risk without technical jargon. NotSoSecure has become a trusted partner for several years now; I would highly recommend them for cost-effective quality third-party penetration tests as well as ethical hacker training needs.”

Dr. Aung CISO for a large US network and communications company

Get a free, no obligation quote today

What happens after you fill in this form or call us


An experienced security consultant will explore your needs and agree the scope of work. You may have a clear idea of this already or we can use our extensive experience to help you find the right answer


We will size your requirements and provide a competitive quote, assign appropriate resources and agree a date for the work


During the testing, our consultants will be on-hand to directly discuss any issues and update you on progress. Any high priority findings will flagged to you daily


At the end of the testing we provide a detailed report of issues based on priority, which is assessed on the potential for business impact. These clear, detailed reports allow you to prioritise actions to improve your security, and we can join you on a call to walk through your findings

Submit this form or call 01223 653 193

Why choose Claranet as your penetration testing and cybersecurity partner?



With 60+ pen testers, the breadth and depth of our expert team means we can react quickly when you need to move fast, delivering you the service you need in the way you need it.



We’ve refined our service experience over 20 years. Customers stay because they know we’re motivated by continually keeping them safe, not just ticking a box.



We find vulnerabilities that others don’t, expertly prioritising them and putting them in to your business context so you can be confident in the prioritisation of the fixes.


Outcome driven

The quality of our partnership, collaboration and debriefing sets us apart. We give you the insight you need, describing the business relevance.

You get so much more with a pen test from Claranet

Choosing Claranet for your penetration testing unlocks business value you won’t find anywhere else. Your penetration tester is part of talented community of security experts who are at the front of security research and part of a wider team of cloud, network and communications experts. You get access to the latest testing services, including continuous security testing, to tackle your most complex security challenges. Come and talk to us and see how we can help improve your security.

Our accreditations

Cyber essentials
CEH Accreditation
CCISO Accreditation
CISSP Accreditation
CRISC Accreditation
OSCE Accreditation