Penetration Testing to Expose and Fix Vulnerabilities
Identify and resolve vulnerabilities before threat actors exploit them. Our CREST-certified penetration testing services provide technical depth, clear remediation steps, and help meet compliance standards. From infrastructure and web application testing to cloud security assessments, we protect your organisation and improve your security posture.




Trusted by Businesses of All Sizes for Penetration Testing





We Simulate Real-World Cyberattacks...
Infrastructure Penetration Testing
We assess your internal and external network infrastructure for misconfigurations, outdated services, and privilege escalation risks. Unlike generic scans, Melius experts manually test firewall rules, exposed services, and lateral movement paths to show how far a real attacker could get and how to stop them.
Web Application Pen Testing
We test for OWASP Top 10 risks, insecure authentication, injection flaws, and broken access control across your public-facing and internal web apps. Melius combines automated and manual testing to give you actionable findings and practical remediation guidance aligned with ISO 27001 and Cyber Essentials.
Cloud Penetration Testing
From misconfigurations in Azure AD to exposed S3 buckets in AWS, our cloud testing helps secure your hybrid and multi-cloud environments. Melius experts go beyond default toolkits to assess real-world attack paths, identity privilege gaps, and help you strengthen your security posture across SaaS.
API Security Testing
APIs are critical and commonly exploited. We test for broken object-level authorisation, information leakage, insecure endpoints, and token misuse. Melius provides developer-friendly reporting and ongoing guidance to help your engineering teams resolve issues fast, without disruption to delivery pipelines.
Mobile App Security Testing
We analyse Android and iOS apps for insecure storage, data leakage, hardcoded secrets, and reverse engineering risks. Melius specialists provide detailed, actionable findings mapped to real-world scenarios helping protect both your users and your backend systems from compromise.
Wireless Network Testing
We simulate rogue access points, test for weak encryption, and validate segmentation controls in your wireless environment. Melius ensures your Wi-Fi infrastructure can’t be used as a pivot point into critical systems supporting audit readiness and continuous cyber resilience.
“Melius CyberSafe expertise has been invaluable in fortifying our digital defences. Its CyberSafe subscription and vulnerability scanning service has given us peace of mind and allowed us to do what we do best – delivering exceptional fashion to our customers”


Jules B elevates its cyber security

Jules B, a multi-award-winning independent retailer of
designer clothing, faced a significant cybersecurity breach
that threatened their operations and reputation.
Here's how we helped them safeguard their business for the future.
The Challenge
Jules B needed to:
- Ensure business continuity
- Improve their threat detection and response capability
- Increase confidence in the security of their operation
Our Approach
Melius Cyber delivered:
- Comprehensive cybersecurity strategy
- Melius CyberSafe ongoing protection and support through continuous penetration testing and vulnerability scanning
- Advanced CyberSafe security features to protect Jules B from emerging threats
The Impact
- Enhanced security posture
- Improved threat detection and response capabilities
- Increased confidence in their digital operations
- Strengthened customer trust

Why Work With Us?
Prevent attacks before they occur with Melius CyberSafe's CREST-Certified Penetration Services.
Comprehensive Penetration Testing
We use advanced security penetration tests to uncover vulnerabilities in web apps, APIs, servers, networks, and databases.
Insights and Reporting
Transform complex data into clear, actionable insights to help keep your business safe and compliant.
Compliance ready
Designed to help you meet regulatory requirements for GDPR, PCI DSS, and ISO 27001.
Trusted Expertise
CREST-Certified cyber-experts work closely with you to provide tailored security plans and remediation advice.
Protect Your Business Today!

