External Network Penetration Testing

Fortify your external network against cyber threats with our comprehensive security test

External Network Penetration Testing (CREST Approved in EMEA)

Cyber Legion offers streamlined external penetration testing to protect your organization’s digital perimeters. Combining automated and manual techniques, our tests uncover vulnerabilities in critical assets like web servers, VPNs, and firewalls. This proactive approach simulates real hacker activities to identify weak spots in your external-facing systems, without needing detailed diagrams or user information. Leveraging the Open Source Security Testing Methodology Manual (OSSTMM), our experts deliver precise insights into how cybercriminals could target you, enabling you to strengthen your defenses. Trust Cyber Legion to enhance your cybersecurity posture, keeping your sensitive data and online assets secure from external threats.

As a CREST Approved provider in EMEA, Cyber Legion not only offers state-of-the-art testing services but also follows a structured process to ensure comprehensive coverage and minimize risks.

Tailored External Network Penetration Testing Solutions

Identify, Assess, and Strengthen Security

Our tailored external network penetration testing services are meticulously designed to uncover vulnerabilities within your organization’s network infrastructure. Employing advanced testing methodologies and cutting-edge tools, we empower you to pinpoint security weaknesses and formulate an effective remediation strategy.

Advanced Scanning and Exploitation

We deploy sophisticated vulnerability scanning and exploitation techniques to unearth potential security gaps in your network. Our seasoned experts collaborate with you to evaluate your security stance, highlight vulnerabilities, and devise a targeted remediation plan to mitigate identified risks

Customized Testing for Specific Security Requirements

Recognizing the uniqueness of each organization’s security landscape, we offer personalized penetration testing services that align with your specific needs. Our approach involves crafting a tailored testing plan that directly addresses your security concerns, ensuring a focused and effective security assessment.

Proactive Threat Identification

Our services aim to proactively identify and neutralize potential threats to your network infrastructure. By discovering and addressing vulnerabilities early, we assist in developing a robust security framework that significantly reduces risk and enhances your defensive posture.

Expertise-Driven Approach

Led by a team of professionals with profound penetration testing experience, our services incorporate the latest methodologies to uncover and tackle potential security issues. Rely on our expertise for comprehensive guidance and support in fortifying your network against cyber threats.

Compliance-Centric Testing

Our penetration testing solutions also prioritize compliance, assisting your organization in adhering to relevant regulations and industry benchmarks. With extensive experience across various sectors, we tailor our testing plans to meet your compliance obligations, helping you navigate the complexities of regulatory requirements while bolstering your security measures.

Comprehensive Penetration Testing Solutions by Cyber Legion

  • Types of Penetration Testing

    Explore our flexible testing options tailored to your needs, including Black Box, White Box, and Gray Box testing, each offering a unique approach to uncover vulnerabilities with varying levels of access

  • Black Box Testing

    Dive into the unknown with no prior access, simulating an external hacker's perspective to identify vulnerabilities in your network's external-facing assets.

  • White Box Testing

    Gain comprehensive insights with specific access provided, allowing for a thorough examination of your network's security posture and potential vulnerabilities

  • Gray Box Testing

    Start with no access and gradually introduce permissions, blending external and internal perspectives for a balanced assessment of your network security

  • Scope Customization

    Tailor your penetration test with optional inclusions like network and infrastructure diagrams, temporary accounts, and user information to deepen the assessment's scope.

  • Asset Identification

    Work together to pinpoint specific assets for testing, from parts of the external network to other critical assets, ensuring a focused and effective examination

  • IP Address Determination

    Identify the IP addresses associated with selected assets, enabling precise targeting during testing to uncover potential security gaps

  • Ownership Verification

    Confirm the ownership of the IP addresses to be tested, involving third-party vendors as necessary, to prevent operational disruptions during the assessment

  • Methodology and Frameworks

    Follow industry-standard methodologies and frameworks, such as OWASP, ASVS, or OSSTMM, for a robust and comprehensive testing approach, including port scanning and service identification

  • Future Attack Monitoring

    Enhance the value of external assessments by monitoring public IPs for potential attack origins, offering clients ongoing protection and peace of mind

External Network Security Testing, A Comprehensive Checklist

  • Information Gathering

    Collect detailed information about the target's network using tools like Nmap, Shodan, and Maltego. Aim to uncover potential vulnerabilities and attack vectors within the network's infrastructure

  • Vulnerability Scanning

    Employ vulnerability scanning tools such as Nessus, OpenVAS, and Retina to detect known weaknesses in the system. This step is crucial for identifying exploitable security gaps

  • Exploitation Techniques

    Utilize exploitation frameworks like Metasploit, Core Impact, and CANVAS to attempt unauthorized access through identified vulnerabilities, highlighting areas for improvement in network defense

  • Social Engineering Assessment

    Implement social engineering tactics, including phishing, pretexting, and baiting, to test the human element of network security and identify information leakage points

  • Password Cracking Tests

    Use password cracking tools such as John the Ripper, Cain and Abel, and Hydra to evaluate the strength of passwords protecting the network, aiming to improve password policies

  • Web Application Security

    Analyze the security of web applications with tools like Burp Suite, Acunetix, and WebInspect, focusing on applications hosted on the target network for potential vulnerabilities

  • Wireless Network Evaluation

    Assess the security of wireless networks with Aircrack-ng, Wireshark, and Kismet, identifying weaknesses in wireless encryption and authentication mechanisms

  • Post-Exploitation Analysis

    After gaining unauthorized access, conduct post-exploitation activities such as privilege escalation and backdoor installation to understand the depth of potential breaches and data exfiltration risks

  • Reporting and Remediation

    Compile findings into a comprehensive report detailing vulnerabilities, exploitation results, and recommendations for remediation to guide the strengthening of network defenses

  • Follow-Up and Continuous Monitoring

    Recommend ongoing security monitoring and periodic re-testing to ensure vulnerabilities are addressed and the network remains secure against evolving threats

Benefits of Working with Cyber Legion

Our Commitment to Your Security

Cyber Legion is your trusted partner in enhancing and protecting your organization’s digital integrity. With our comprehensive security services, including penetration testing and remediation across applications, mobile apps, APIs, IoT devices, and networks, we’re dedicated to fortifying your defenses against cyber threats

Proactive Defense Across All Fronts

Our Secure Client Portal opens the door to an array of specialized security testing services. By adopting best practices and reputable security frameworks, we minimize operational disruption and provide insightful feedback throughout the testing process. Stay informed and secure with our targeted approach to application, mobile, API, IoT, and network security.

Navigating Cybersecurity Challenges Together

At Cyber Legion, we believe in a partnership approach to cybersecurity. Our experienced team is committed to offering expert support and guidance, ensuring your needs are met with precision and professionalism. Whether you require a one-time assessment or ongoing services, we’re here to assist you in navigating the complex landscape of cybersecurity

Securing Your Business Continuity

Trust Cyber Legion to keep you one step ahead of cybersecurity threats. Our clear, comprehensive reporting identifies vulnerabilities and outlines actionable steps for improvement, empowering your organization to achieve and maintain the highest levels of security. Let us be your guide in the ever-evolving world of cybersecurity, safeguarding your organization’s future


Penetration tests, also known as pen tests, are conducted by ethical hackers in order to identify vulnerabilities in your company’s software and hardware systems. A web application pen test is a specific type of test that focuses on examining the endpoint of every web application in order to uncover potential weaknesses. These tests are becoming increasingly important as hackers are targeting web apps, browsers, and plug-ins that may contain sensitive financial or personal information. By conducting a pen test, you can ensure that your systems are secure and protect your company’s data from potential threats.

With Cyber Legion services you can achieve all your security goals in one platform. Penetration Testing and Vulnerability Management combined in one unified view. Live events for all penetration testing findings and vulnerability management results with bug tracking, Risk dashboards, Ticketing systems etc.


External Network Penetration Testing Service FeaturesSupported
Comprehensive External Vulnerability Assessment
Firewall, Router, and Switch Security Evaluation
Perimeter Device Configuration Review
External IP Address and Domain Name Testing
Phishing Vulnerability Assessment
DMZ (Demilitarized Zone) Security Checks
VPN Endpoint Security Testing
SSL/TLS Security Configuration Auditing
Web Application Firewall (WAF) Testing
Compliance with External Network Security Standards
Hacker-Style Offensive Security Testing
Network Traffic Analysis and Anomaly Detection
Executive and Technical Security Reports
Real-Time Security Alerting and Monitoring
Collaboration with IT and Network Security Teams
Checks against Baseline Security Requirements for External Networks

External penetration testing (also known as external network penetration testing) is a security assessment of an organisation’s perimeter systems. Your perimeter comprises all those systems which are directly reachable from the internet.

External penetration tests allow you to properly gauge your defenses and determine where it can be successfully hacked. The penetration test highlights cybersecurity exposures, which allows you to correct the issues before hackers can exploit them.

The Penetration Testing Framework (PTF) provides comprehensive hands-on penetration testing guide. It also lists usages of the security testing tools in each testing category. The major area of penetration testing includes: Network Footprinting (Reconnaissance) Discovery & Probing.

Our testers will contact you immediately by phone, email, and the dedicated Slack channel that we will use with you during the testing process.

This isn’t something we actively test for and we wouldn’t recommend testing for this. However, we will highlight vulnerabilities that could lead to a Denial of Service.

The network penetration testing process typically consists of five phases:

  1. Planning and Reconnaissance. The goal of this phase is to plan to simulate an attack. Understanding your company’s tech stack and systems is key.
  2. This refers to the investigation stage, where penetration testers use scanning tools, explore your systems and identify vulnerabilities of the network.
  3. Gaining Access. Having identified network vulnerabilities, the penetration testers use these security vulnerabilities to gain access to your business network. The pen testers then use these vulnerabilities to exploit your system.
  4. Persistent Access. After successfully gaining access to your system, the pen tester will maintain access long enough to accomplish the typical malicious hackers’ goals.
  5. Security Assessment Report. After the Network Penetration test, a report is prepared discussing the process itself together with the analysis. The report will outline the security vulnerabilities found and how to prevent future attacks.

The time that penetration testing takes depends on the size and complexity of your organization’s system structure, as well as the scope of the test itself. For the ‘average’ company, a network penetration test should take around three days. For a merchant processing millions of credit cards a year, for example, a pen test will take over a week, or possibly two.

It’s crucial to find out how vulnerable your network is before an attack happens. You can use the information collected to fix potential security flaws and keep your data safe from hackers.

The penetration testing cost depends on the facts identified during scoping, such as the agreed time, goals, technical resources, approach, and remedial support.

Security Testing Pricing list refence 

CREST Approved Penetration Testing Services

Secure your business with top-tier expert knowledge and advanced Penetration Testing (CREST Approved)

Let's collaborate to build and maintain secure businesses

Cyber Legion convert threats into trust by leveraging Advanced Technology and Expertise in Product Security and Business Continuity. Our approach integrates Secure by Design, comprehensive Security Assurance, Red Teaming, Adversary Emulation and Threat Intelligence, Penetration Testing, and Expert Security Advisory and Consultancy. We ensure compliance with meticulous security assurance and detailed documentation, from design to post-market.

As a CREST-certified Penetration Testing provider in the EMEA region, we are committed to the highest security standards.Cyber Legion - CREST Approved