Cyber Resilience Solutions
Penetration Testing Services
Discover your security flaws before global attackers do.
A CHECK and CREST accredited Penetration Testing company
A CHECK and CREST accredited Penetration Testing company
A CHECK and CREST accredited Penetration Testing company
At WorkNest, our Penetration Testing services cover a wide range of endpoint categories, including App, Network, Cloud, Web, and API.
Every engagement is delivered by our in-house cyber security specialists, industry-leading experts and backed by GuardNest, our proprietary platform offering dynamic, intelligent threat reporting alongside a suite of complementary tools and services.
Tests simulate different types of attacks, including SQL injection, denial of service (DoS), and man-in-the-middle (MiTM). By finding vulnerabilities, analysts can assess an organisation's security measures and provide an improvement plan.
Our Penetration Testing services
CHECK Penetration Testing
Conducted by CHECK-certified consultants, ensuring compliance with NCSC and CREST standards.
We deliver infrastructure, web application, and IT Health Check assessments that combine rigorous technical testing with regulatory assurance for the highest-security environments.
Application Security
We identify vulnerabilities across web, mobile, desktop, and API-based applications through real-world attack simulations, static analysis, and targeted reviews.
Our assessments cover the full threat spectrum - from insecure authentication and data exposure to unsafe input handling - across diverse technology stacks.
Network Infrastructure & Architecture Security
We identify vulnerabilities, misconfigurations, and privilege escalation paths across your entire network - from Active Directory and firewalls to VPNs and WiFi.
Our real-world attack simulations deliver clear risk ratings and actionable remediation steps to strengthen your security posture.
Cloud and Container Security Services
We uncover and remediate vulnerabilities and misconfigurations across AWS, Azure, Google Cloud, and containerised environments, including Docker and Kubernetes.
We also review Google Workspace and Microsoft 365 configurations against current security best practices.
PSN IT Health Check (ITHC)
Ensure PSN compliance with comprehensive IT health checks.
We identify vulnerabilities, streamline audits, and deliver actionable guidance to strengthen security across internal and external systems, protecting public data and maintaining robust assurance.
Social Engineering
We simulate targeted social engineering attacks to expose human and physical security gaps.
From phishing and vishing to OSINT and black team operations, our assessments deliver actionable intelligence to build organisational resilience against manipulation and intrusion.
LLM Security Assessment
We test AI-powered applications against attack vectors that traditional penetration testing overlooks, including prompt injection, jailbreaking, and sensitive data exposure through model outputs.
Our assessment evaluates guardrail effectiveness, model behaviour under adversarial conditions, and API integrations, aligned to the OWASP Top 10 for LLMs.
Continuous Vulnerability Scanning
We continuously scan your networks, systems, and applications to surface weaknesses before attackers do, covering outdated software, misconfigurations, and exposed entry points.
Every scan is reviewed by our consultants, who filter false positives and deliver prioritised findings with clear remediation guidance.
What is Penetration Testing?
What is Penetration Testing?
What is Penetration Testing?
It tests networks, web applications, cloud environments, and other systems to assess security and identify vulnerabilities that attackers could exploit.
It can simulate various attacks, including SQL injection, denial-of-service (DoS), and man-in-the-middle (MiTM). By attempting to exploit vulnerabilities, testers gauge the effectiveness of your security measures and pinpoint areas for improvement.
It tests networks, web applications, cloud environments, and other systems to assess security and identify vulnerabilities that attackers could exploit.
It can simulate various attacks, including SQL injection, denial-of-service (DoS), and man-in-the-middle (MiTM). By attempting to exploit vulnerabilities, testers gauge the effectiveness of your security measures and pinpoint areas for improvement.
Why choose WorkNest for Pen Testing?
Security testing should strengthen your organisation - not overwhelm it. At WorkNest, we combine deep technical expertise with practical business understanding to deliver testing that drives measurable improvement.
CHECK & CREST certified
Have your testing conducted by qualified professionals to ensure the highest possible standards
Expertise and efficiency
We combine human expertise for in-depth analysis with efficient automation for ongoing scanning
GuardNest platform
Simplifies vulnerability management with real-time reporting, remediation tracking, and expert advice
Compliance support
We support adherence to relevant industry regulations and standards to avoid the risk of non-compliance
Remote testing
Our consultants offer thorough internal and external testing without on-site presence
Wide range of expertise
We offer testing across everything from infrastructure and mobile applications to cloud and IoT environments
Why conduct a Penetration Test?
Why conduct a Penetration Test?
Why conduct a Penetration Test?
50% of businesses and 32% of charities experienced a cyber security breach or attack in 20241
Identify complex and chained vulnerabilities that automated scanning can miss.
Understand which areas of your systems are vulnerable, enabling informed decisions about where to prioritise security investment.
Comply with standards such as PCI-DSS and DORA, and adhere to frameworks including HIPAA, SOC 2, ISO 27001, and GDPR.
Uncover weaknesses in your systems that are masked by the internal bias that comes from building, maintaining and working on systems daily.
Methodology
We ensure testing has both depth and breadth by aligning with recognised methodologies such as CREST, OSSTMM, OWASP, and NIST.
This ensures a structured, consistent approach grounded in best practice and real-world threat intelligence.
We follow a clear seven-step process designed to deliver rigorous testing, meaningful insight, and practical remediation guidance at every stage.
We listen to your needs and develop a tailored project strategy, producing a scope that meets your unique requirements.
Where vulnerabilities are successfully exploited, our consultants assess their severity by determining which assets and networks can be accessed and what data may be exposed. Vulnerabilities are then ranked from low to critical within GuardNest.
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.
Our consultants assess how deeply they can access your systems using leading industry techniques, custom-built tools, and their first-hand experience.
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.
We publish the findings 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.
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 to ensure ongoing support even after the project is complete.
Elevated testing With GuardNest
Elevated testing With GuardNest
Elevated testing With GuardNest
Our Penetration Testing is delivered via GuardNest, transforming testing from a static report into a live, actionable experience.
Live vulnerability visibility
Clear risk prioritisation
Actionable remediation guidance
Real‑time collaboration
Centralised tracking
What our clients say
We’ve always been very impressed with the cyber security services WorkNest provide us. Their professional approach, knowledge and flexibility have ensured they have become a key trusted partner in our supply chain.
Paymentsense
Founder
WorkNest Secure delivered a highly professional and thorough incident response service. Their team’s technical knowledge, attention to detail, and clear communication throughout the process made a complex area easy to navigate. The quality of the analysis and final reporting gave us real assurance and added value to our internal security efforts, minimising the impact to the business.
Shoezone
Head of IT
Cyber resilience does not stop at Penetration Testing. We provide a broader suite of services designed to strengthen your security posture, support compliance, and build long-term organisational confidence.
Simulate real-world attacks to uncover hidden risks and strengthen defences.
Access impactful Incident Response services that provide rapid, expert-led containment and recovery from cyber threats.
From initial gap analysis to final certification, our experts can guide you every step of the way.
Get access to security expertise for strategy, risk management, and compliance.
FAQs
Vulnerability scanning uses software to methodically scan for known vulnerabilities. Penetration Testing uses in-depth analysis and human ingenuity to uncover flaws that scanning alone can’t find.
Automated testing supports defences like regular patching, while Penetration Tests provide detailed reports and expert remediation advice. Penetration Testing companies often use both to protect your organisation from cyber threats.
CREST-certified Penetration Testing that ensures qualified professionals use recognised methodologies.
CREST is an international accreditation body certifying cyber security professionals and organisations. It ensures rigorous technical and ethical standards, supports compliance, and guarantees high-quality, repeatable testing.
We offer a variety of Penetration Tests, either as one-offs to spot check your security or on a recurring basis as part of an ongoing strategy.
The type of test depends on your security objectives, technology systems and compliance needs, and often a combination of tests is needed to meet an organisation's goals.
We can work with you to understand your goals and which tests will help you achieve them.
Penetration Testing should be conducted at least once a year, with additional tests after significant infrastructure changes or upgrades. This schedule is supported by best practices, compliance standards and security professionals, and is mandated by standards like PCI DSS.
WorkNest's Penetration Testing is designed to ensure minimal disruption to your operations. Testing can also be performed against a non-production replica of your live environment, such as a UAT or QA environment. A common specification is 'no denial of service (DoS)', meaning tests have a negligible impact on day-to-day operations.
The duration depends on scope, including whether it is internal or external, network size and complexity, and how much information is disclosed upfront.
With our GuardNest platform powering intelligent reporting, more time is dedicated to testing and less to writing reports, resulting in clearer outcomes and more cost-effective testing.
Penetration Testing projects vary in length and complexity depending on factors like the apps and infrastructure being tested, the test’s aims, and its parameters. As a leading UK provider, we take time to understand your objectives to scope a best-fit test that delivers value for money. Our dedicated scoping experts help ensure the best outcome for your Penetration Test.
Vulnerability scanning uses software to methodically scan for known vulnerabilities. Penetration Testing uses in-depth analysis and human ingenuity to uncover flaws that scanning alone can’t find.
Automated testing supports defences like regular patching, while Penetration Tests provide detailed reports and expert remediation advice. Penetration Testing companies often use both to protect your organisation from cyber threats.
We offer a variety of Penetration Tests, either as one-offs to spot check your security or on a recurring basis as part of an ongoing strategy.
The type of test depends on your security objectives, technology systems and compliance needs, and often a combination of tests is needed to meet an organisation's goals.
We can work with you to understand your goals and which tests will help you achieve them.
WorkNest's Penetration Testing is designed to ensure minimal disruption to your operations. Testing can also be performed against a non-production replica of your live environment, such as a UAT or QA environment. A common specification is 'no denial of service (DoS)', meaning tests have a negligible impact on day-to-day operations.
Penetration Testing projects vary in length and complexity depending on factors like the apps and infrastructure being tested, the test’s aims, and its parameters. As a leading UK provider, we take time to understand your objectives to scope a best-fit test that delivers value for money. Our dedicated scoping experts help ensure the best outcome for your Penetration Test.
CREST-certified Penetration Testing that ensures qualified professionals use recognised methodologies.
CREST is an international accreditation body certifying cyber security professionals and organisations. It ensures rigorous technical and ethical standards, supports compliance, and guarantees high-quality, repeatable testing.
Penetration Testing should be conducted at least once a year, with additional tests after significant infrastructure changes or upgrades. This schedule is supported by best practices, compliance standards and security professionals, and is mandated by standards like PCI DSS.
The duration depends on scope, including whether it is internal or external, network size and complexity, and how much information is disclosed upfront.
With our GuardNest platform powering intelligent reporting, more time is dedicated to testing and less to writing reports, resulting in clearer outcomes and more cost-effective testing.
