Penetration Testing Services & Adversary Simulation
Gain a clear understanding of your most significant security risks — and the actions that matter most.
Our penetration testing services simulate real-world attacks across your applications, infrastructure, cloud, and users — uncovering exploitable weaknesses and delivering clear, actionable insight to reduce risk before attackers do.
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Real-World Attack Simulation — Not Just Vulnerability Scanning
Many “penetration tests” rely heavily on automated tools that produce long lists of low-context findings. CyberStash takes a different approach. Our engagements are led by experienced security professionals who think and operate like real attackers — combining manual techniques, creative exploitation, and tool-assisted testing to uncover weaknesses that automated scans often miss.
We don’t just identify individual vulnerabilities. We test how weaknesses can be chained together to achieve real-world impact — such as unauthorised access, data exposure, or privilege escalation. This provides a clear view of how your organisation could actually be compromised, and what to prioritise first.
Coverage Across Your Entire Attack Surface
CyberStash delivers expert-led penetration testing that goes beyond automated scanning. We simulate real attacker techniques across your applications, infrastructure, users, and defences to uncover exploitable weaknesses before adversaries do.
Application & Software Security
- Web Application Penetration Testing
- API Security Testing
- Mobile Application Security (iOS & Android)
- Secure Code Review
- Cloud Application & Platform Testing (Azure, AWS, GCP)
Infrastructure & Network Security
- Internal Network Penetration Testing
- External Network Penetration Testing
- Active Directory Security Testing
- Standard Operating Environment (SOE) Security Review
- WAF & Perimeter Defence Review
- Attack Surface Management (ASM)
Wireless & Device Security
- Wi-Fi & Wireless Security Testing
- IoT & Embedded Device Security
Human & Physical Security Testing
- Social Engineering Assessments
- Phishing Simulation
- Vishing & Smishing Testing
- Physical Security Testing
Adversary Simulation
- Red Team Engagements
- Purple Teaming Exercises
- Vulnerability Assessment (baseline risk visibility)
- Application Risk Assessment
Find the Weaknesses That Actually Put You at Risk
Many penetration tests rely heavily on automated tools that produce long lists of low-context findings.
CyberStash takes a different approach.
Our engagements are led by experienced security professionals who think and operate like real attackers — combining manual techniques, creative exploitation, and tool-assisted testing to uncover weaknesses automated scans often miss.
We don’t just identify individual vulnerabilities.
We test how weaknesses can be chained together to achieve real-world impact — such as unauthorised access, data exposure, or privilege escalation. This gives you a clear understanding of how your organisation could actually be compromised, and what to fix first.
Clear Outcomes. Actionable Risk Reduction.
Penetration testing should do more than identify technical flaws — it should help you reduce real business risk. CyberStash engagements are designed to provide clear, prioritised insight that supports faster remediation, stronger defences, and informed decision-making.
Real-World Risk Visibility
Understand how attackers could actually compromise your environment, not just which vulnerabilities exist in isolation.
Prioritised Remediation
Focus on the weaknesses that create real exposure first, with clear guidance on what to fix and why it matters.
Stronger Detection & Response
Identify gaps in monitoring, alerting, and response processes when attacks are simulated in realistic scenarios.
Executive & Technical Clarity
Receive reporting tailored for both security teams and leadership, helping translate technical findings into business risk.
Engagement Models & Testing Approaches
Every organisation has different security goals, risk profiles, and internal capabilities. CyberStash offers flexible engagement models and testing approaches to ensure penetration testing delivers meaningful, realistic results aligned to your environment.
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Testing Approaches
Black Box Testing
Simulates an external attacker with no prior knowledge, identifying how exposed your organisation is to real-world internet-based threats.
Grey Box Testing
Uses limited internal knowledge to model realistic attacker scenarios, focusing on how access to one system or user account could be leveraged further.
White Box Testing
Provides deep, structured testing using full system knowledge, ideal for uncovering complex logic flaws, misconfigurations, and hidden security gaps.
Engagement Types
Targeted Penetration Tests
Focused assessments against specific applications, systems, or environments to identify exploitable weaknesses.
Comprehensive Security Assessments
Broader testing across multiple attack surfaces to provide organisation-wide risk visibility.
Red Team Engagements
Adversary simulation exercises that test not only vulnerabilities but also your organisation’s detection and response capability.
Purple Teaming
Collaborative exercises where attackers and defenders work together to improve monitoring, detection, and response effectiveness.
Reporting & Deliverables
Penetration testing only delivers value when findings are clear, prioritised, and easy to action. Our reporting is designed for both technical teams and leadership — so you know what matters most and what to fix first.
What You Receive
A high-level overview of key risks, business impact, and priority actions for leadership and decision-makers.
Detailed evidence for each vulnerability, including reproduction steps, affected systems, severity, and remediation guidance.
Where applicable, we demonstrate how multiple weaknesses can be chained together to achieve real-world compromise scenarios.
Findings ranked by exploitability, exposure, and business impact — helping teams focus on what matters most.
Clear, practical recommendations for fixing issues, improving configurations, and strengthening defensive controls.
Post-Engagement Support
We verify that fixes have been correctly implemented and vulnerabilities have been effectively mitigated.
Recommendations to strengthen monitoring, detection, and response capabilities where gaps were observed.
Optional walkthrough sessions to help technical teams and leadership understand findings and next steps.
What Is Penetration Testing?
Penetration testing services help organisations identify exploitable security weaknesses before attackers do. Unlike automated vulnerability scans, professional penetration testing simulates real-world attack techniques to determine how systems, applications, users, and networks could be compromised.
A penetration test goes beyond listing vulnerabilities. It shows how weaknesses can be combined to gain unauthorised access, escalate privileges, or access sensitive data. This provides organisations with a clear understanding of real risk and helps prioritise remediation efforts effectively.
What Is Adversary Simulation?
Adversary simulation, often referred to as red teaming, mimics the tactics, techniques, and procedures (TTPs) used by real threat actors. These engagements test not only technical vulnerabilities but also detection, response, and security operations capability.
By simulating realistic attack paths, adversary simulation helps organisations understand how well their defences perform under pressure and where improvements are needed in monitoring, alerting, and incident response.
How Penetration Testing Differs from Vulnerability Scanning
Vulnerability scanning identifies known weaknesses using automated tools. Penetration testing services take this further by validating whether vulnerabilities can actually be exploited and what impact that exploitation could have.
While scans generate large lists of potential issues, penetration testing focuses on exploitable paths and business risk. This results in prioritised findings that security teams can act on immediately.
Benefits of Regular Penetration Testing
Regular penetration testing helps organisations identify exploitable security gaps before attackers do, reduce the likelihood of ransomware and data breaches, strengthen security monitoring and detection capabilities, meet compliance and audit expectations, and improve overall cyber resilience.
Who Needs Penetration Testing?
Penetration testing services are valuable for organisations handling sensitive customer or financial data, businesses operating in regulated industries, companies undergoing digital transformation or cloud migration, enterprises seeking assurance before major system changes, and security teams looking to validate defensive effectiveness.
Common Types of Penetration Testing
CyberStash delivers a range of penetration testing services, including web application penetration testing, network penetration testing, cloud penetration testing, mobile application testing, API security testing, social engineering testing, wireless security testing, and red team or adversary simulation exercises.