Our penetration testing services 

CHECK Penetration Testing

Delivered by CHECK-certified consultants, ensuring compliance with NCSC and CREST standards.  

Includes infrastructure, web application, and IT Health Check assessments, combining rigorous technical testing with regulatory assurance for high-security environments. 

Application Security

Identifies vulnerabilities in web, mobile, desktop, and API-based applications through real-world attack simulations, static analysis, and targeted code reviews.  

Covers common and complex threats, from insecure authentication and data exposure to unsafe input handling, across diverse systems.  

Network Security Testing

Uncovers vulnerabilities, misconfigurations, and privilege gaps across your network infrastructure and architecture.  

From Active Directory to firewalls, VPNs, and Wi-Fi, our real-world attack simulations deliver clear risk ratings and actionable steps to strengthen your security.  

Cloud & Container Security Services

Identifies and supports remediation of vulnerabilities and misconfigurations across AWS, Azure, Google Cloud, and containerised environments, including Docker and Kubernetes.  

Reviews configurations in Google Workspace and Microsoft 365 to ensure alignment with security best practices. 

Social Engineering

Simulates real-world social engineering attacks to uncover human and physical security gaps.  

Testing includes OSINT, phishing, vishing, and black team operations, delivering actionable insights to strengthen organisational resilience against manipulation and intrusion. 

Methodology 

We ensure testing has both depth and breadth by aligning with recognised methodologies such as CREST, OSSTMM, OWASP, and NIST. 

We have a seven-step method.  

1. Planning 

We listen to your needs and develop a tailored project strategy, producing a scope that meets your unique requirements.  

2. Reconnaissance, Information Gathering & Threat Modelling 

We assess your target systems and design a testing approach based on: where your organisation is most vulnerable, the most effective and efficient attack techniques, and how to conduct the test while ensuring your organisation remains protected. 

3. Vulnerability Analysis 

We scan and enumerate the defined targets to identify existing vulnerabilities. This includes listening for open ports, identifying running services, and developing an attack plan based on the scan results. 

4. Exploiting Your Systems 

Our consultants assess how deeply they can access your systems using leading industry techniques, custom-built tools, and their first-hand experience. 

5. (Post-Exploitation) Determining Severity 

If a consultant successfully exploits a vulnerability, they assess its severity. This involves determining which assets and networks can be accessed and how much information can be gathered. Your vulnerabilities are then ranked from low to critical in GuardNest.  

6. Reporting & Debrief 

Findings are published in a report on GuardNest, organised by category and type, with remediation advice for each exploit and vulnerability. On request, we also arrange debrief calls to review identified risks in detail and discuss remediation. 

7. Ongoing Support 

Your GuardNest licence includes continuous external infrastructure scanning to minimise risk between tests. We also offer a remediation check service, and every engagement includes a full consultative approach, ensuring ongoing support even after the project is complete.