Network Penetration Testing Services

Identify weaknesses across your network infrastructure before they become serious security risks.

Our network penetration testing service evaluates internal and external network environments to identify exposed services, configuration weaknesses, access control issues, and other security risks within an authorized scope.

We combine automated assessment techniques with manual security testing to help organizations understand their network exposure and prioritize remediation.

If you need an independent assessment of your infrastructure, you can work with an ethical hacker to help define a testing scope based on your environment, objectives, and security requirements.

What Is Network Penetration Testing?

Network penetration testing is an authorized security assessment designed to identify weaknesses in network infrastructure before they can be exploited by unauthorized parties.

A network environment can include internet-facing systems, firewalls, VPN gateways, servers, endpoints, internal network segments, authentication systems, and other infrastructure.

Testing can evaluate both the external attack surface and internal security posture.

External testing considers what an unauthorized party could potentially reach from outside the organization.

Internal testing evaluates security weaknesses that could become relevant if an attacker or compromised device were already inside the network.

The objective is to provide organizations with a clearer understanding of their network security risks and actionable information for remediation.

All testing should take place within a clearly defined scope and with appropriate written authorization.

Why Network Security Testing Matters

Network infrastructure remains an important part of an organization’s overall security posture.

Misconfigurations, unnecessarily exposed services, weak access controls, outdated systems, or insufficient network segmentation can increase security risk.

A network penetration test provides an independent perspective on how those controls perform under controlled assessment conditions.

Organizations can use network penetration testing to:

• Identify weaknesses across external network infrastructure
• Evaluate internal network security
• Review exposed services and configurations
• Assess network segmentation
• Identify relevant Active Directory security weaknesses
• Evaluate remote access infrastructure
• Prioritize remediation
• Support security and compliance requirements
• Validate security improvements after remediation

The objective is not simply to produce a list of technical findings. A useful assessment should help security and IT teams understand which issues matter most and what actions should be considered next.

What We Test

The exact scope depends on your infrastructure, objectives, locations, network architecture, and authorization.

External Network Testing

External testing evaluates internet-facing infrastructure within the authorized scope.

This can include externally accessible servers, firewalls, VPN gateways, exposed services, and other approved network assets.

The objective is to help organizations understand what their external attack surface reveals and identify security weaknesses that could increase exposure.

Internal Network Testing

Internal network testing evaluates the security posture of systems and network segments from an internal perspective.

The assessment can consider issues involving network segmentation, access controls, lateral movement paths, and privilege-related weaknesses within the authorized environment.

This type of testing can help organizations understand how security controls perform if an attacker or compromised device has already gained a foothold inside the network.

Firewall and Configuration Review

Firewall rules and network configurations can have a significant effect on an organization’s exposure.

Where included in the scope, testing can evaluate relevant rules, exposed ports, unnecessary services, and configuration weaknesses.

The objective is to identify areas where network controls may not provide the level of protection expected by the organization.

Active Directory Testing

Organizations using Windows domain environments may require additional assessment of Active Directory security.

Testing can evaluate relevant configuration weaknesses, authentication controls, privilege relationships, and other security issues within the authorized scope.

Active Directory testing can be particularly valuable for organizations that rely heavily on centralized identity and access management.

Wireless Network Testing

Wireless security can also form part of an assessment where specifically requested and authorized.

Testing may consider relevant Wi-Fi security configurations and approved wireless infrastructure.

Wireless testing should be scoped carefully to ensure that only authorized networks and environments are assessed.

Endpoint Testing

Servers and workstations can introduce additional security considerations into a network environment.

Where endpoints are included in scope, testing can evaluate relevant configuration weaknesses, missing security controls, exposed services, and other issues that could affect network security.

External vs Internal Network Penetration Testing

External and internal testing answer different security questions.

External Network Testing

External testing asks:

What could an unauthorized party potentially reach from outside the organization?

The assessment focuses on the approved internet-facing attack surface and relevant externally accessible infrastructure.

Internal Network Testing

Internal testing asks:

What could happen if an attacker or compromised device were already inside the network?

The assessment can help organizations understand segmentation, access controls, privilege relationships, and other internal security considerations.

Many organizations can benefit from evaluating both perspectives because external and internal assessments provide different views of network security.

Our Network Penetration Testing Process

Our process is designed to keep the assessment controlled, authorized, and aligned with your objectives.

Scope and Authorization

The engagement begins with a scoping process.

We define the network segments, IP ranges, locations, systems, and testing objectives that are included in the assessment.

Written authorization should be established before testing begins.

Testing windows and communication procedures can also be agreed upon so that everyone understands the boundaries of the engagement.

Reconnaissance and Assessment Planning

The assessment team develops an understanding of the authorized network environment and its relevant attack surface.

This can include identifying approved hosts, exposed services, and other information necessary to plan the assessment.

Manual and Automated Testing

The assessment can combine automated security testing with manual analysis.

Automated techniques can help identify potential weaknesses efficiently, while manual assessment provides additional context and helps validate relevant findings.

Testing remains within the agreed scope throughout the engagement.

Finding Validation

Potential findings should be reviewed and validated to reduce false positives and provide organizations with useful results.

Validation helps ensure that reported findings are relevant to the environment being assessed.

Reporting

The final report provides prioritized findings and remediation guidance.

Depending on the engagement, findings can include severity information, affected systems, supporting evidence, potential impact, and recommendations for addressing the identified issue.

Retesting

Where included in the engagement, remediation can be followed by retesting to determine whether previously identified vulnerabilities have been addressed.

This provides organizations with additional confirmation after corrective measures have been implemented.

What You Receive

A professional network penetration test should give your IT and security teams information they can act on.

Depending on the agreed scope, deliverables can include:

• Network risk overview
• Prioritized security findings
• Severity ratings
• Affected systems or network components
• Supporting evidence
• Security impact information
• Remediation recommendations
• Technical observations
• Retesting results where included

The goal is to make the findings useful for both technical teams and business stakeholders.

Network Penetration Testing for Different Environments

Network infrastructure differs significantly between organizations.

Some businesses operate traditional on-premises networks and data centers, while others rely heavily on remote access, hybrid environments, or cloud infrastructure.

The assessment should therefore be adapted to the technologies and infrastructure that actually form part of the client’s environment.

Where cloud infrastructure is part of the wider security boundary, cloud security testing can provide a dedicated assessment of cloud environments and configurations.

Organizations looking for a broader security assessment can also explore penetration testing services to determine which testing approach is appropriate.

The right scope depends on the systems involved and the security questions the organization needs the assessment to answer.

Who Needs Network Penetration Testing?

Network penetration testing can be useful for organizations that need independent validation of their infrastructure security.

Organizations Preparing for Compliance Requirements

Businesses preparing for a compliance assessment, contractual requirement, or security review may need documented testing of their network environment.

The appropriate scope depends on the applicable requirement and the systems being assessed.

Companies Using VPN Infrastructure

Remote and hybrid organizations often rely on VPN and remote access technologies.

Testing can help assess relevant externally accessible infrastructure and controls within the agreed scope.

Organizations Operating On-Premises Infrastructure

Businesses operating servers, workstations, network equipment, and data center environments can use network penetration testing to gain an independent view of their security posture.

Organizations Without Recent Independent Testing

If a network has never undergone an independent security assessment, a penetration test can provide useful visibility into potential weaknesses and areas for improvement.

Network Penetration Testing vs Vulnerability Scanning

Vulnerability scanning and penetration testing serve related but different purposes.

A vulnerability scan primarily uses automated tools to identify known vulnerabilities and configuration issues.

Network penetration testing can combine automated assessment with manual analysis and validation to provide additional context around identified weaknesses.

A scan may identify a potentially vulnerable service, for example, while a penetration test can provide greater context around the security significance of the finding within the authorized assessment.

For organizations seeking broader visibility into potential weaknesses, vulnerability assessment services can provide a complementary approach.

For this reason, vulnerability scanning and penetration testing can be used as complementary components of a broader security program.

Why Choose Ethical Hacker Hire?

A network security assessment should be more than a technical scan followed by a generic report.

The provider should understand your environment, define an appropriate scope, communicate testing boundaries, validate findings, and provide information your team can use.

Our approach emphasizes:

• Written authorization before testing
• Clearly defined testing scope
• Internal and external assessment options
• Manual and automated testing techniques
• Finding validation
• Prioritized reporting
• Practical remediation guidance
• Retesting where included in the engagement

Our security professionals use established security testing practices appropriate to the agreed scope and provide documentation designed to help organizations understand and prioritize identified risks.

Frequently Asked Questions

What Is Network Penetration Testing?

Network penetration testing is an authorized security assessment designed to identify weaknesses in network infrastructure, including relevant external and internal systems within the agreed scope.

What Is the Difference Between Internal and External Network Testing?

External testing evaluates what an attacker could potentially reach from outside the organization.

Internal testing evaluates security from an internal perspective, including relevant segmentation, access control, and privilege-related weaknesses.

Both approaches can provide different and complementary views of network security.

Will Network Penetration Testing Disrupt Our Operations?

Testing should be planned around agreed testing windows and rules of engagement.

Higher-risk testing activities should only be performed when they are appropriate for the engagement and have been explicitly approved.

The scope and testing procedures should be established before the assessment begins to help minimize unnecessary disruption.

Do You Test Cloud Infrastructure?

Cloud environments can be assessed when included in the appropriate scope.

The appropriate testing approach depends on the cloud infrastructure, systems, and objectives included in the engagement.

How Long Does a Network Penetration Test Take?

The timeframe depends on the size of the network, number of locations, systems included, testing objectives, and scope.

A project timeline can be established after the environment and assessment requirements have been reviewed.

Do You Provide a Network Security Report?

Yes. The agreed deliverables can include prioritized findings, severity ratings, supporting evidence, and remediation recommendations.

Do You Retest After Remediation?

Retesting can be included where agreed as part of the engagement.

The purpose is to verify whether previously identified vulnerabilities have been addressed following remediation.

Request a Network Penetration Testing Assessment

Want to understand the security of your network infrastructure?

Tell us about your environment, systems, locations, and security objectives. We can help define an appropriate network penetration testing scope based on your requirements.

Confidential consultation · Authorized security testing · Professional reporting