Why choose Bulletproof as your penetration testing company?

Competitive Pen Test Prices

Competitive Pen Test Prices

We offer highly affordable penetration testing services to ensure companies of all sizes can protect themselves from cybersecurity threats.

Certified Security Experts

Certified Security Experts

All Bulletproof security pen testers are independently qualified by industry-recognised certification bodies such as CREST.

Comprehensive Reporting

Comprehensive Reporting

You’ll receive a comprehensive report complete with remediation advice and guidance. As well as a full debrief call to run through the findings.

Free Vulnerability Scans

Free Vulnerability Scans

Protect your business with 12 months Free vulnerability scans when you choose Bulletproof as your pen testing partner (Up to 8 ext. IP addresses).

Choose from our complete range of penetration testing services

Web application penetration testing

Web application penetration testing

  • Uncover vulnerabilities and insecure functionality
  • Identify all security risks, including the OWASP Top 10
  • Multiple test types, including authenticated and API testing
  • Proven track record for exposing security flaws
Network penetration testing

Network and infrastructure penetration testing

  • Test your network & infrastructure for weaknesses
  • Check services, patch levels and configurations
  • Multiple test types, including external and internal testing
  • Established pedigree for exposing vulnerabilities
Mobile application penetration testing

Mobile application penetration testing

  • Uncover insecure app functionality
  • Exploit discovered weaknesses in your app
  • Secure your software development lifecycle
  • Proven expertise in securing iOS and Android apps
Cloud penetration testing

Cloud penetration testing

  • Detect weaknesses in your cloud provider's system
  • Cover any cloud system: Amazon AWS, Google's GCP, Microsoft Azure
  • Thorough cloud security assessment
  • Recognised talent in identifying threats in cloud environments
Social engineering prevention services

Social engineering prevention services

  • Find out the effectiveness of your social engineering controls
  • Maximise your employees' security vigilance
  • Get maximum protection with regular tests and training
  • Extensive experience in tailoring campaigns to your security objectives
Red team security testing

Red team security testing

  • Identify risks and exploit weaknesses in your physical and cyber defences
  • A carefully pre-defined scope sets the rules of engagement
  • Multi-layered approach for maximum impact
  • Proven track record in exposing critical security flaws

Penetration testing methodology

Most penetration testing follows a 6-step lifecycle:

Scope definition & pre-engagement interactions

Based on your defined goals, we’ll work with you to develop a tailored testing strategy.

Intelligence gathering & threat modelling

In this reconnaissance stage, our experts use the latest groundbreaking techniques to gather as much security information as possible.

Vulnerability analysis

Using the latest tools and sector knowledge, we’ll uncover what’s making your critical assets vulnerable and at risk from attack.


Using a range of custom-made exploits and existing software, our penetration testers will test all core infrastructure and components without disrupting your business.


The team will determine the risks and pivot to other systems and networks if within the scope of the test. All compromised systems will be thoroughly cleaned of any scripts.


Our security team will produce a comprehensive report with their findings. Once received, we’ll invite you for a collaborative read through. You’ll have the opportunity to ask questions and request further information on key aspects of your test.

Here’s what our customers have to say about our penetration testing services

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Frequently asked questions

What is penetration testing?

Penetration testing, also known as pen testing or ethical hacking, is where you appoint a security testing company to take on the role of a hacker and attempt cyber attacks to compromise or gain unauthorised access to your network, mobile application and/or cloud environment by any means necessary.

Also known as white hat hacking, a qualified professional, a pen tester, will make use of penetration testing automated tools and manual processes to uncover any vulnerabilities and misconfigurations that present a cyber-security risk.

As a technical exercise, it involves an internal & external analysis of your IT infrastructures and applications as well as testing human elements (social engineering) therefore penetration tests should be considered a fundamental component of your risk management programme.

The aim of penetration testing is twofold:

  • Identify and exploit shortcomings in the confidentiality, integrity and availability of information.
  • Should provide remediation advice and offer guidance on how to reduce the impact of the identified shortcomings being exploited.

What are the benefits of a penetration test & why is penetration testing so important?

It’s recommended that businesses perform penetration tests at least annually or whenever a significant change is made to the environment.

Certain compliance packages, such as PCI DSS certification, make regular penetration tests mandatory. Put simply, if you want good security, you need a comprehensive penetration test.

Stay a step ahead of the hackers

Testing your current security posture provides a clear indication on where you stand against an ever-changing threat landscape. It’s how you can efficiently identify and address vulnerabilities before an attacker does.

Take control of your infrastructure

As technology evolves and your business grows, technical infrastructures become increasingly complex. It’s not uncommon for things to slip out of your control, or you might not have the relevant expertise to ensure that your controls are implemented the right way. Each test reveals the flow of your environment and any interdependencies that have a direct or indirect impact on your business security. Don’t forget that you’re only as secure as your weakest link.

Prove your security

You might think you have a very secure infrastructure in place, with all the processes, procedures and staff training to back it up. But how do you know? A penetration test is an ideal way to test your security implementations, giving you real-world proof that your security controls are up to standard and working as expected. This can be as much for the benefit of your customers’ and suppliers’ peace of mind as your own.

Solid risk management

Each penetration test addresses your business risks and the impact to confidentiality, integrity and availability of your data. This provides a good indication to management and the technical teams on how to best prioritise, plan, budget and remediate the risks in a structured manner.

Because you have to

There are increasing numbers of legal and regulatory requirements, industry standards, and best practices that all say you should or must have regular penetration tests. These include PCI DSS, ISO 27001, FCA, HMG and CoCo among numerous others. Though compliance does not guarantee security, these standards provide good directions on what is needed to ensure your infrastructure is in a good overall state of security.

Protect your business

It goes without saying that security breaches are bad news, with potentially enormous impacts on your brand’s reputation and the financial repercussions. Penetration tests drastically reduce the risk of a breach, protecting the time and money invested in your organisation as well as the confidence of existing and potential customers.

What are the different types of penetration test?

There are several types of penetration testing that can be defined as either black, white or grey box testing. It’s also worth specifying there is a difference between an application test and an infrastructure test. An application test, as the name suggests, is where a tester looks for flaws within an application to see if there’s any way to get at data or manipulate functionality in a way that wasn’t intended. This can involve cookie theft, XSS, man-in-the-middle attacks etc. Infrastructure tests on the other hand are where the tester attempts to gain entrance to a corporate network.

Black box testing

Black box testing is the closest simulation of real-world hacking in that the tester will know very little, if anything about the target other than what is publicly available. These are often the least time-consuming tests as it relies solely on the tester discovering vulnerabilities in outwardly facing components. However, whilst these tests accurately represent real life situations, they will not pick up any vulnerabilities or misconfigurations that may be present internally. Therefore, they cannot predict what damage an internal threat may cause.

White box testing

White box testing offers the most thorough security test in which the tester has a full understanding of the application or infrastructure, how it works and has access from various levels. It’s likely that they’ll even have access to the source code or have a full detailed map of the internal infrastructure. The tester will probe for vulnerabilities and misconfigurations to try and gain access from an external position, as well as look to see what damage can be done from an internal perspective.

Grey box testing

Grey box testing is a blend of black and white box testing and is often the most popular type of test. The tester will have a limited knowledge of the target, potentially including some documentation. They will often have basic user level access, allowing for partial testing of the target’s internals.

What’s the difference between penetration testing and vulnerability assessments?

The two services, whilst very different, are equally as important where cyber security is concerned. Regular vulnerability tests can be run quickly against new builds or networks on a regular (monthly) basis to allow you to patch any vulnerabilities that come to light. Leaving a single vulnerability unchecked on a single device could theoretically compromise your entire infrastructure. Whereas an annual penetration test can offer you a detailed report of your entire security posture, including your susceptibility to social engineering.

Comparing vulnerability assessments and penetration tests
Penetration TestVulnerability Assessment
FrequencyRecommended every six months.Recommended once a month.
ReportsConcise but detailed report of methods used, flaws found and exploited, and remediation steps to be taken.Often lengthy report listing the CVEs of the vulnerabilities found across all devices and systems.
ScopeTo be agreed upon with your pen test provider. Can focus on internal and external infrastructure, user accounts, default admin accounts (servers), staff (social engineering), switches etc.This should be anything with an IP address. Anything that connects to the business network should be in scope.
Performed by /
Tools Involved
Specialised cyber security companies offering pen tests from experienced testers. Makes use of automated tools, expert knowledge, and a variety of manual processes.Internal IT departments or outsourced companies. Automated Vulnerability scan tools.
ValueIdentifies and reports any weaknesses found across the business, helping to reduce the likelihood of these being exploited by real-world hackers.Identifies known vulnerabilities and detects equipment that can be compromised.

Just because you have had a vulnerability scan, it doesn’t mean you don’t need a penetration test. Likewise, if you’ve recently had a penetration test, it doesn’t mean you won’t benefit from a vulnerability assessment in the near future.

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What can I expect in my penetration test report?

Upon the completion of the penetration testing main stages, the lead penetration tester will present the pen test results in a clear, comprehensive report.

This report will be split into two sections: an executive summary and a technical breakdown, typically delivered within five working days after the completion of the penetration test.

1. Pen Test Executive Summary

  • High-level, non-technical discussion of the overall risk assessment and findings
  • Confirmation of the pen testing plan and methodology
  • An overview of the security risks & business impact of the discovered threats

2. Technical Penetration Testing Report

  • Description of steps taken during the penetration testing assessment
  • Detailed report & description and evidence of vulnerabilities identified, including their Common Vulnerability Scoring System (CVSS) and priority for remediation
  • Evidence and proof-of-concept information for target exploitation
  • Detailed steps on how to remediate any vulnerabilities and a guide on how to prevent future cyber treats
  • Additional details, such as penetration testing tools used during the assessment, experts involved, checklists etc.

How much does a pen test cost?

All our tests are bespoke and tailored to your specific requirements. Get in touch with our team for a free, no-obligation quote.

What will the pen test report contain?

After our team of experts complete the mobile app penetration testing, you will receive a comprehensive report that will contain the following:

  • All risks based on the current server/application setup/configuration
  • Vulnerabilities and running services for the servers and applications
  • What has been done to exploit each security issue
  • Remediation steps
  • Near-term and long-term actions

All testing programmes are bespoke to your needs and organisation so please use the above as a guide.

How long does a test normally take?

  • Small apps, networks, cloud systems: 2-3 days
  • Medium apps, networks, cloud systems: 5-10 days
  • Larger apps, networks, cloud systems: 10 days+

All tests are tailored to you so use this as a guide.

Will my business be disrupted during the test?

Testing can be performed against a non-production replica of your live environment, such as a UAT/QA environment, to ensure no risk to your live services. If testing against production is unavoidable, we can coordinate our testing activities to minimise the impact. You can also specify things like no denial of service (DoS), meaning tests will have a negligible impact on your day-to-day operations.

Do you offer free retests?

Whilst we do not offer free retesting, we do offer 12-month vulnerability scanning.

Do you recommend other tests to complement certain pen tests?

Regular and comprehensive assessments of your cyber security are always recommended. The ramifications of security breaches can result in severe financial and reputational losses. We would always advise the safest approach for a company is to regard your cyber security holistically, weaknesses in one area may undermine security implemented elsewhere.

Pen Testing Resources

Our experts are the ones to trust when it comes to your cyber security

CREST approvedCREST approvedCREST approved
Payment card industry data security standardPayment card industry data security standardPayment card industry data security standard
ISO 27001 certifiedISO 27001 certifiedISO 27001 certified
ISO 9001 certifiedISO 9001 certifiedISO 9001 certified
Government G-Cloud supplierGovernment G-Cloud supplierGovernment G-Cloud supplier
Crown commercial service supplierCrown commercial service supplierCrown commercial service supplier
Cyber EssentialsCyber EssentialsCyber Essentials
Cyber Essentials PlusCyber Essentials PlusCyber Essentials Plus