Accredited Penetration Testing
Cyse delivers accredited penetration testing services designed to identify and exploit vulnerabilities before adversaries do. Our testers hold industry-recognised certifications including CREST, OSCP, and OSCE, ensuring every engagement meets the highest professional standards. Whether you need to satisfy regulatory requirements, validate your defences, or stress-test a new application before launch, our methodology is rigorous, repeatable, and aligned to frameworks such as OWASP, PTES, and NIST.
Why Penetration Testing Matters
Automated scanning only scratches the surface. A penetration test simulates real-world attack scenarios, chaining together vulnerabilities the way an actual adversary would. The result is a clear, prioritised view of your true risk exposure paired with actionable remediation guidance.
of organisations experienced more than one data breach in 2024
average number of days to identify a breach without proactive testing
average total cost of a data breach globally in 2024
Our Penetration Testing Services
We offer a comprehensive suite of penetration testing services covering every layer of your technology estate. Each engagement is scoped to your environment and objectives, and delivered by specialists with deep domain expertise.
Network Penetration Testing
Internal and external network assessments that identify misconfigurations, unpatched services, weak protocols, and lateral movement paths across your infrastructure.
Web Application Testing
In-depth testing of web applications against the OWASP Top 10 and beyond, covering authentication, session management, business logic, and API integrations.
Mobile Application Testing
Security assessment of iOS and Android applications, including binary analysis, local data storage, certificate pinning, inter-process communication, and backend API testing.
Active Directory Testing
Targeted assessment of Active Directory environments to uncover privilege escalation paths, Kerberoasting opportunities, delegation abuse, GPO weaknesses, and trust relationship exploits.
Cloud Penetration Testing
Assessment of AWS, Azure, and GCP environments targeting IAM misconfigurations, storage exposure, serverless attack surfaces, container escapes, and cross-tenant vulnerabilities.
API Security Testing
Dedicated testing of RESTful, GraphQL, and SOAP APIs to identify authentication bypasses, broken object-level authorisation, injection flaws, and rate limiting weaknesses.
Wireless Penetration Testing
On-site assessment of wireless networks to identify rogue access points, weak encryption, evil twin attack susceptibility, and wireless segmentation failures.
Social Engineering
Controlled phishing campaigns, vishing, and physical intrusion attempts to evaluate your human security layer, security awareness programme effectiveness, and incident response readiness.
Red Team Engagements
Objective-based adversary simulation that combines technical exploitation, social engineering, and physical access to test your detection and response capabilities under realistic conditions.
OT & SCADA Testing
Specialist assessment of operational technology environments including SCADA, ICS, and IoT systems, conducted with safety-first protocols to avoid disruption to critical processes.
Container & Kubernetes Testing
Security review of containerised environments including Docker image analysis, Kubernetes RBAC, pod security policies, network policies, and supply chain integrity of container registries.
Source Code Review
Manual and tool-assisted review of application source code to identify security flaws that are difficult to detect through black-box testing, including cryptographic weaknesses and hard-coded secrets.
Our Methodology
Every engagement follows a structured, repeatable methodology aligned to industry standards including PTES, OSSTMM, and the OWASP Testing Guide. This ensures consistency, thoroughness, and clear communication at every stage.
Scoping & Pre-Engagement
We work with you to define objectives, scope, rules of engagement, and success criteria. This includes agreeing on testing windows, escalation contacts, and any compliance-driven requirements.
Reconnaissance & Discovery
Passive and active intelligence gathering to map the target environment, enumerate services, identify technologies in use, and build an attack surface profile.
Vulnerability Analysis
Systematic identification and validation of vulnerabilities using a combination of automated tooling and manual techniques, eliminating false positives and prioritising exploitable issues.
Exploitation & Post-Exploitation
Controlled exploitation of confirmed vulnerabilities to demonstrate real-world impact, including privilege escalation, lateral movement, and data exfiltration where agreed in scope.
Reporting & Debrief
Delivery of a comprehensive report containing an executive summary, detailed technical findings with evidence, risk ratings aligned to CVSS, and prioritised remediation recommendations. Followed by a live debrief with your team.
Remediation Retest
After your team has addressed the findings, we perform a targeted retest to confirm that vulnerabilities have been effectively remediated and no regressions have been introduced.
Accreditations & Standards
Our penetration testers hold industry-leading certifications, and our engagements are aligned to recognised frameworks. This ensures our clients receive testing that meets regulatory, compliance, and assurance requirements.
CREST
Registered and certified testers delivering assessments aligned to CREST methodologies
CHECK
Approved to deliver CHECK-standard testing for UK Government and public sector organisations
OSCP / OSCE
Testers holding Offensive Security certifications demonstrating hands-on exploitation expertise
ISO 27001
Testing aligned to ISO 27001 controls to support your information security management system
Ready to Test Your Defences?
Speak to our team to scope an engagement tailored to your environment, risk profile, and compliance requirements.