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Get CREST-Certified penetration testing

Comprehensive Penetration Testing Services for Businesses across the UK

Protect your digital assets with industry-leading web application penetration testing.

Our CREST-certified experts, based in the UK, specialise in identifying and mitigating vulnerabilities in your web apps, helping you avoid costly security breaches.

Discover why businesses choose us for web app security testing.

Certificationser Essentials Plus Certification

Free 30-Minute Consultation

why get a penetration test with stripe olt?

Industry leaders have been using Stripe OLT for the last 18 years.
Discover the reasons major brands trust us as their pen test partner.

Comprehensive Reporting

You’ll receive a comprehensive report, with in-depth remediation advice and guidance, in a language you can understand.

Crest Certified

Our ethical hackers are CREST accredited, which means our experts have received an industry-leading certification and continuously deliver to the highest levels of pen testing standards.

Affordable, Competitive Pricing

We provide enterprise-level threat detection and response services, without the corporate price tag. We want to empower organisations with highly affordable offensive testing services to ensure companies of all sizes are protected against growing cyber security threats.

benefits of offensive security testing

Rapidly gain insight into vulnerabilities

Improve risk awareness of common vulnerabilities

Demonstrate commitment to cyber security

Discover weak points before attackers

Gain third-party assurance and peace of mind

Manage your risk profile in an informed way

Coller capital

This web app penetration assessment has been vital to our business. Not only were we taken through any potential risks, but we were also given thorough guidance on how to mitigate them, in a language we were able to understand. Being given this information has been invaluable in ensuring our data is protected.

Senior Cyber Security Manager

Learn more

Choose your penetration test

With a variety of Pen Testing solutions available, many SME’s are unsure where to begin, or which type of penetration test will best suit their needs. That’s why at Stripe OLT, we offer five core Penetration Testing solutions, to cover a vast range of vulnerabilities found in both cloud and on-premises IT systems.

Cloud Penetration Test

This pen test will detect and exploit security vulnerabilities in your cloud infrastructure.

Discover risks associated with any outdated software

Test for potential server misconfigurations

Identify weak credentials that may pose a risk

Discover risks associated with any outdated software

Web Application Penetration Test

Identify security vulnerabilities that have stemmed from insecure web development practices.

Test user authentication to verify a variety of accounts

Assess your web applications for vulnerabilities, such as XSS

Help to safeguard web server security and database server security

Assess the configuration and security of web browsers 

Network Penetration Test

This type of assessment will test both internal and external business network perimeters.

Uncover insecure configuration parameters

Test against insufficient firewalls

Identify unpatched systems and software flaws

Uncover weak encryption conventions

Wireless Penetration Test

Identify and examine the connections between all endpoints and devices connected to your organisation’s Wi-Fi.

Identify any vulnerabilities affecting your wireless infrastructure

Understand how an attacker could move through your wireless infrastructure, escalating their privileges and compromising your corporate network

Mobile Penetration Test

Test apps built for Android, iOS (and other common operating systems) against known security vulnerabilities.

Uncover insecure app functionality and misconfigurations, such as insufficient Cryptography 

Exploit potential weaknesses in your application(s), like insecure data transmission

Secure and safeguard your software development lifecycle 

Infrastructure Penetration Test

Ensure the security posture of your infrastructure with detailed assessments that uncover potential shortcomings.

Recognize vulnerabilities and test the resilience of both physical and virtual infrastructures.

Delves into areas including physical access controls, breach resilience as well as server and network vulnerabilities

Discover how attackers could use exploits to gain unauthorised access, leak data and compromise systems

Ryan Pullen

Head of Cyber Security

“Our cyber security analysts perform all offensive security testing engagements with the same industry best-practice testing methodology lifecycle – we call this our proven process.”

The Stripe OLT proven process

Looking for more information?

Some of the most common questions we are asked by IT leaders…

What type of companies need penetration testing?

Penetration testing can be beneficial for organizations of all sizes and in all industries. Here are a few types of companies that may particularly benefit from penetration testing:

Financial Institutions: Financial institutions handle sensitive customer information, including personal and financial data, making them a prime target for cyberattacks. Penetration testing can help identify potential vulnerabilities in their systems and networks, allowing them to take action to mitigate risks.
Retail Companies: Retail companies handle large amounts of sensitive customer data, including credit card information, making them an attractive target for cybercriminals. Penetration testing can help retailers identify and fix vulnerabilities before they are exploited.
Healthcare Organizations: Healthcare organizations hold vast amounts of sensitive patient data, including medical records and personal information. Penetration testing can help these organizations identify and address security weaknesses in their systems and networks, ensuring that patient data remains protected.
Government Agencies: Government agencies often hold sensitive information, including classified data, and are a target for nation-state actors and other malicious actors. Penetration testing can help these agencies identify and address vulnerabilities in their systems and networks, helping to protect critical information.
Technology Companies: Technology companies, including software and hardware manufacturers, develop and maintain complex systems and networks that are critical to their operations. Penetration testing can help these companies identify and fix security weaknesses in their products and infrastructure, reducing the risk of data breaches and other security incidents.

These are just a few examples of the types of organizations that may benefit from penetration testing. In general, any organization that stores, processes, or transmits sensitive information should consider performing regular penetration tests to help ensure the security of their systems and networks.

IS penetration testing an important aspect of ISO 27001?

Yes, penetration testing is considered an important aspect of the information security management system (ISMS) specified in ISO 27001. The standard requires organizations to regularly assess the security of their systems and networks, and penetration testing is one of the recommended methods for doing so.

ISO 27001 requires organizations to implement and maintain a risk management process, and penetration testing is used to identify and evaluate potential risks to the confidentiality, integrity, and availability of information. The results of penetration testing can then be used to inform risk management decisions and to improve the overall security of the organization’s ISMS.

It is important to note that ISO 27001 does not specify how often penetration testing should be performed, or the specific methods that should be used. Rather, it leaves these decisions to the discretion of the organization and its risk management process. However, it does require that organizations regularly review and assess the effectiveness of their ISMS, including the results of penetration testing, and make changes as necessary to improve security.

What does it mean to be crest accredited for penetration testing?

CREST Accreditation for Penetration Testing is a certification program that provides assurance to organizations and clients that the accredited company or individual has demonstrated a level of competence and professional integrity in conducting penetration testing.

Penetration testing is a simulated attack on a computer system, network, or web application, carried out to identify security weaknesses and vulnerabilities. A CREST Penetration Testing Accreditation is a globally recognized standard for professional penetration testing and is awarded to companies and individuals who have demonstrated the necessary technical and professional skills, knowledge, and experience in this field.

By choosing a Accredited CREST Penetration Tester, organizations can be confident that they are working with a trusted and competent professional who is committed to conducting ethical and professional testing services.

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