Application Penetration Testing

Uncover Vulnerabilities. Strengthen Your Software.

Businesses rely on applications like web portals, mobile apps, APIs, and internal systems. However, these are common targets for attackers. That’s why our CREST-accredited testing identifies and helps fix vulnerabilities before they can be exploited, keeping your systems secure.

Proven Track record - trusted supplier of penetration security testing services

CREST-approved Service Provider

As an award-winning, CREST-approved penetration testing service provider, you can trust not only our credentials but also our proven methodology. In addition, we bring industry-leading expertise to reliably uncover and address vulnerabilities in your IT infrastructure.

Genuine 4.9 Trustpilot Rating

Our experienced penetration testers deliver industry-leading expertise backed by hundreds of genuine 5-star reviews. We tailor each assessment to your needs, ensuring reliable, high-quality results. With Assure Technical, your security is in safe hands.

Assure Technical provide comprehensive security testing reporting and insights

Comprehensive Testing & Insights

We combine manual testing with smart tools to simulate real-world attacks tailored to your app and business context. In addition, we detect logic flaws and misconfigurations often missed by automation, providing clear, prioritised insights for effective remediation.

Speak to one of our experts

01684 252 770

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Why Proactive Application Penetration Testing is Business-Critical Key Types of Application Pen Testing Explained

Why Proactive Application Penetration Testing is Business-Critical

Applications are central to modern business, but greater functionality and connectivity mean increased cyber risk. Whether handling data, processing transactions, or integrating third-party services, even one missed vulnerability can have serious consequences.

Here are six compelling reasons why regular application penetration testing should be a core part of your cyber security strategy.

find hidden vulnerabilities with application penetration testing

Uncover Hidden Vulnerabilities Before Attackers Do

Applications are often complex, with various components and user roles. Therefore, testing is crucial to uncover issues like injection flaws, insecure APIs, or misconfigured permissions before attackers exploit them.

Protect Customer Data and Safeguard Trust

A breach of personal or financial data can severely and permanently damage your reputation. However, regular testing helps prevent this by ensuring your applications meet data protection standards. As a result, you not only reduce risk but also reassure customers their information is secure.

Support Compliance with Security Standards

From GDPR and ISO 27001 to PCI DSS and Cyber Essentials Plus, application testing helps demonstrate that you're actively managing cyber risk and meeting your regulatory and contractual obligations.

smishing, social engineering, cybersecurity awareness

Strengthen Your Development Lifecycle

Security issues become more costly and complex to fix later in the development process. Therefore, early testing is essential to integrate security into your SDLC. As a result, teams can learn from findings, adapt their approach, and build more resilient software from the start.

Mitigate Financial and Operational Risk

Cyber attacks can lead to severe financial damage, including incident response costs, lost revenue, and potential legal action. However, regular testing helps prevent breaches before they occur. Consequently, this reduces the risk of business disruption, regulatory penalties, and reputational harm.

Gain Independent, Expert Assurance

Internal development and QA teams may unintentionally overlook security issues due to familiarity or time pressures. As such, independent testing provides an objective assessment of your application’s resilience. In turn, this boosts stakeholder confidence in your organisation’s overall cyber maturity.

Key Types of Application Pen Testing Explained

Application penetration testing targets specific risks across web, mobile, API, and cloud environments. Each type plays a crucial role in identifying vulnerabilities and strengthening your defences. Understanding these methods helps ensure your applications are secure, compliant, and resilient against evolving threats.

Web Application Penetration Testing

Focuses on identifying vulnerabilities in websites and online portals. It helps prevent attacks like SQL injection, XSS, and authentication flaws.

Mobile Application Penetration Testing

Targets security weaknesses in iOS and Android apps. This ensures data protection, secure API calls, and safe user interactions on mobile devices.

API Penetration Testing

Examines exposed APIs for insecure endpoints and data leaks. It’s crucial for protecting system integrations and preventing unauthorised access.

Cloud Application Penetration Testing

Assesses cloud-hosted apps and configurations. It helps uncover misconfigurations, access control issues, and data exposure risks in cloud environments.

Client-Side Application Penetration Testing

This testing identifies security flaws in locally installed software, such as desktop apps or browser plugins. Moreover, it highlights risks from local access or user interaction often missed in server-side testing.

Source Code Review (Static Analysis)

This proactive approach analyses code to uncover hidden vulnerabilities early. In addition, it strengthens security from the ground up and supports secure development throughout the software lifecycle.

Your Ultimate Guide to Penetration Testing

In today’s digital era, cyber breaches are inevitable; posing significant operational, financial, and reputational threats to your business.

Importantly, penetration testing is amongst the most effective strategies to bolster your cyber security defences.

Download a complimentary copy of our comprehensive guide today. It covers all you need to know about penetration testing, enabling you to make an informed decision on how it could benefit your business.

Download Now

Great expertise and easy to work with

Assure conducted a penetration test on our software. The level of detail was excellent and they took extra time to make sure we understood the issues that were highlighted. I highly recommend them, their expertise is excellent and they are very easy to work with.

Eoin

Excellent service from Assure Technical

As always we received excellent service. We asked Assure Technical to conduct a penetration test and the pen tester clearly put more effort into this than the original scope. The report and feedback meeting was great and very informative.

Karen

Feedback on the Penetration Test of (redacted)

The general demeanour of involved personnel was excellent. The thoroughness of the investigation was impressive, especially the analysis of one of our more complicated connections.

Andrew

application penetration testing - who needs it?

Who Needs Application Penetration Testing?

Organisations developing or managing web or mobile applications, especially those handling sensitive data, payments, or personal information.
Businesses undergoing digital transformation or launching new platforms that must be secure from day one.
Companies required to meet regulatory or industry compliance such as GDPR, ISO 27001, PCI DSS, or Cyber Essentials Plus.
Firms integrating with third-party services or APIs, where insecure connections could expose broader systems to risk.
Security-conscious organisations seeking proactive assurance to protect their reputation, customers, and operations.

Application penetration testing isn’t just for tech companies – it’s essential for any organisation that relies on software to serve, support, or protect its users.

Talk to our specialists today

Get in touch

We’re technical security experts, but we’re people first. We’re here to help make security simple.

01684 252 770

[email protected]

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