Cyber-attacks are more targeted, sophisticated and frequent than ever before, while the risks posed by internal users are often overlooked. Our penetration testing services model the techniques of criminal hackers and malicious insiders to identify any vulnerabilities in your online-facing or internal applications. With clear reporting, we provide tailored recommendations on how you can strengthen your security posture.

Bespoke Service

Tailored to your applications, needs and success criteria. 

Rigorous Testing

Using the most advanced techniques.

Personalised Reporting

From high-level executive summaries to technical reports. 

Ongoing Report

From our dedicated consultants and support team.

Technology is a double-edged sword

Any organisation that uses online or internal applications is at risk. 

While the technologies you use may boost efficiencies and facilitate growth, each application also offers a potential opportunity for malicious individuals to compromise your systems. It’s crucial to guard against this by building penetration testing into your security strategy, since this helps to identify and address any vulnerabilities before they impact your business. 

Our penetration testing services are CREST-approved, demonstrating our outstanding quality when it comes to operating procedures, data security, and approach. 

Get in touch today to discuss how we can help you. 

How we work


We determine your specific requirements before building a tailored proposal.


Our thorough testing simulates the attack methodologies of today’s most advanced hackers.


Our comprehensive reports impart clear, practical advice on how to address any weaknesses.


We offer ongoing support to guide you through the process of securing your applications. 

The benefits of an Application Penetration Test

Enjoy Peace of Mind

Put the focus on your business with confidence that your applications are operating securely.

Protect your Reputation

Guard against irreparable damage to your brand caused by compromised systems. 

Save Money

Avoid extensive costs associated with post-breach remediation. 

Ensure Compliance

Evidence commitment to international regulations and security standards including GDPR, ISO 27001 and PCI DSS. 


What is


What is penetration testing?

A typical penetration test models malicious cyber attacks by real-world hackers to determine the robustness of your web or mobile applications, or other connected products, against such threats.

At Arcturus, all our tests are carried out by experienced, accredited professionals, using a bespoke combination of the latest tools and techniques to assess your systems and identify any vulnerabilities. We then provide clear, practical advice on how you can secure these gaps and better protect your business.

Why does my business need penetration testing?

Left unchecked, business-critical applications can conceal weaknesses which present opportunities for external hackers and disgruntled or opportunistic insiders to compromise your systems. Not only does this expose both your organisation’s and your customers’ data to potential misuse, it can also put you at risk of severe reputational and financial loss in the event of a data breach. The cyber threat is constantly evolving, so it’s vital to implement regular testing and ensure that your security set-up is equipped to keep pace.

Which applications should I test?

Any applications that have been modified specifically for your business, either in-house or by a third-party, should undergo a penetration test to verify that there are no vulnerabilities that will leave you at risk.

How long does penetration testing take?

The length of a penetration test can vary from approximately two days to two weeks, depending on the scale of your systems and the number of applications and products that you use or provide.

Our consultants work with you to determine a timeframe for your particular requirements, ensuring that your business is thoroughly vetted.

How much does penetration cost?

The cost of a penetration test depends primarily on the number of days required to ensure total coverage of your applications.

We build a proposal with you upfront, based on your success criteria, with no hidden fees. It’s worth remembering that the cost of penetration testing is far less than the crippling costs associated with post-breach remediation.

Other services

Web Application Testing

Web application attacks range in size and complexity, from the exploitation of vulnerable open source components, to app-specific attacks which take advantage of user controls. Internal web applications are at risk too, from disgruntled or malicious users who may find loopholes and use their position to wreak havoc. Learn more >

Mobile Application Testing

86% of mobile applications have at least one vulnerability violating the OWASP Top 10. If these issues are exploited by cyber criminals or malicious users, it can have serious implications for an organisation, in terms of both cost and reputational damage. Learn more >

Product Assessment

If you develop a software product or service, are you confident that it’s as secure as it can be? Your clients rely on you to keep their data secure, so if you’ve not had your product or service independently assessed, your reputation is at risk if a vulnerability is discovered. Learn more >