Penetration testing for organisations that cannot risk disruption

Our UK-based security professionals deliver penetration testing across web applications, infrastructure, and networks – delivering clear, prioritised findings that support risk-based remediation.
Tailored to your environment
Testing focused on the systems that matter to your organisation.
Actionable outcomes
Guidance designed to support efficient remediation, not just reporting.
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UK Cyber Security Council membership logo
Cyber Essentials Certification Logo for Exploitr Limited

Our Penetration Testing Process

Our penetration testing process is designed to be thorough, efficient, and contextualised to your specific requirements. We follow a structured approach from the initial scoping process to the final reporting, ensuring that we deliver actionable insights to enhance your security posture.

Every assessment starts with a planning and scoping session, where we collaborate with you to define and understand your specific security needs and objectives for testing to ensure a targeted and effective approach to the engagement.

This scope of work is provided as part of our working agreement, and is further stated in the resulting assessment report that is provided at the completion of testing.

Our standard recommendations provide a balance of deep, thorough coverage of your environments whilst also ensuring that testing is performed in a safe and constructive manner to minimise any potential impact to your resources.

Each scope of work is tailored to your business requirements and level of security maturity and risk appetite and outlines:

Exact systems and applications in scope
Testing methodology and approach
Rules of engagement and constraints
Success criteria and deliverables
Fixed pricing with no surprises

Our team conducts a thorough assessment of the target environment to discover assets, services, web pages and then identifying potential vulnerabilities and weaknesses that could be exploited by attackers.

Depending upon the type of engagement, we perform different types of testing aligned with industry standards. For example, with external network testing we focus upon the services that are exposed from assets and form a picture of what the attack surface looks like from the outside in.

For web application testing, for example, we focus upon on identifying potential flaws that could allow unauthorised access to customer or business data, either from an unauthenticated or authenticated user perspective.

Asset discovery and service identification
Technology stack fingerprinting
Attack surface mapping
Vulnerability identification
Entry point analysis

This systematic approach ensures comprehensive coverage while minimising false positives common in automated scanning.

As ethical hackers, we safely simulate real-world cyber attacks through exploitation to test your defences, gaining insights into any vulnerabilities and the effectiveness of your security measures.

Where it is possible to gain access to a system, we will perform post-exploitation activities if this is included in the agreed scope of work. This allows us to delve deeper into the security posture and discover additional weaknesses that may present within your environment.

Safe, controlled exploitation demonstrates real business impact:

Privilege escalation attempts
Data access validation
Lateral movement testing (for internal assessments)
Authentication bypass validation
Business logic exploitation

We coordinate all exploitation activities with your team and never take actions that could cause service disruption without explicit approval.

During the engagement we provide live access to the data that we report on via our Attack Surface Center platform. This offers you the ability to see vulnerabilities being discovered and reported in real-time.

We provide a detailed report of our findings for every engagement, and offer debriefing sessions to discuss the vulnerabilities, their impact, and any recommended remediation strategies with your stakeholders at a level they are most comfortable with.

Every engagement includes:

Detailed technical report with evidence and reproduction steps
Executive summary with risk ratings and business impact
Remediation guidance with specific recommendations
Severity scoring and prioritisation framework
Debriefing call with technical and executive stakeholders

Reports are delivered within 5 business days of testing completion, with live findings available throughout testing via Attack Surface Center.

Why Choose Exploitr

Our penetration testing services are designed to uncover real, exploitable risks and provide organisations with clear guidance on how to fix them.

Manual, consultant-led testing
Remediation advice tailored to you
Standards-led testing methodology
Direct communication
Real-world threat testing
Transparent, fixed pricing

Get the right level of testing

We’ll help you scope an assessment suitable for your business and provide a fixed quote within 24 hours.

Our Cyber Security Services

Comprehensive security testing across applications, infrastructure, and networks – aligned with industry standards and compliance requirements.

Penetration Testing

Web Application Testing

Manual security testing of websites, web applications, and SaaS platforms. Coverage aligns with OWASP security testing guidelines and includes authentication bypass, business logic flaws, code injection, parameter tampering, and more.

API Penetration Testing

REST, GraphQL, and SOAP API security testing aligned with OWASP API Security Top 10. Identifies weaknesses such as authorisation bypass, authentication flaws, rate limiting issues, and data leakage.

Desktop Application Testing

Windows, Linux, and macOS application security assessment of thick client applications, including reverse engineering, privilege escalation, and insecure design patterns.

Mobile Application Testing

iOS and Android application security assessment including client-side vulnerabilities, insecure data storage, API security, and reverse engineering protection.

External Network Penetration Testing

Assessment of internet-facing infrastructure including firewalls, VPNs, remote access services, and other exposed systems. Identify points of initial compromise from an external attacker perspective.

Internal Network Penetration Testing

Simulates an attacker who has gained an initial foothold via internal access. Tests for lateral movement, privilege escalation, and access to critical systems.

Wireless/Wi-Fi Security Assessment

Wi-Fi penetration testing focusing on rogue access point detection, guest network isolation, Wi-Fi configuration and infrastructure security.

Vulnerability Assessment

Automated scanning complemented by manual validation to identify known vulnerabilities across your infrastructure. Ideal for baseline security checks and continuous monitoring.

Pentest-as-a-Service (PTaaS)

Continuous security testing with on-demand access to consultants, unlimited retesting, and real-time vulnerability tracking through our platform.

Ready to Strengthen Your Security Posture?

Our team are on hand to discuss your security requirements and receive a tailored, fixed-price proposal within 24 hours.
Scoping call to understand your environment and objectives
Fixed-price proposal delivered within 24 hours
Flexible scheduling to fit your development and business cycles
Professional testing with clear reporting and remediation guidance