Network Penetration Testing

Network penetration testing shows how an attacker could break into your infrastructure and how far they could go once inside. We test your internet-facing perimeter and your internal network to find exposed services, weak configurations and privilege escalation paths, then help you close them.

What We Test

• External network: public IPs, firewalls, VPNs, remote access, mail and web servers.
• Internal network: workstations, servers, file shares and network segmentation.
• Active Directory: weak policies, Kerberos attacks and privilege escalation paths.
• Service vulnerabilities: unpatched software, default credentials and insecure protocols.
• Wireless networks (on request): encryption, guest isolation and rogue access points.

Our Approach

We follow recognised methodologies such as PTES and NIST SP 800-115. After reconnaissance and discovery, we validate vulnerabilities manually and attempt safe, controlled exploitation to prove real-world impact, always within agreed rules of engagement. Internal tests can be run remotely via a secure appliance or VPN.

What You Get

• Attack-path narrative showing how issues chain together.
• Risk-rated findings with evidence and remediation steps.
• Quick wins and longer-term hardening recommendations.
• A free retest of remediated issues.

Why Offensium Vault

• Safe, controlled testing with written rules of engagement.
• Manual validation to remove false positives.
• ISO 27001 and ISO 9001 certified processes.

Pair network testing with an infrastructure configuration review or attack surface management for continuous visibility.

Frequently Asked Questions

What is the difference between external and internal network testing?

External testing simulates an attacker on the internet targeting your public systems. Internal testing simulates an attacker or malicious insider who already has a foothold inside your network.

Will network testing cause downtime?

We avoid denial-of-service and destructive techniques and agree testing windows with you, so business operations are not disrupted.

How often should we run a network penetration test?

At least once a year and after significant infrastructure changes, or as required by your compliance framework.

Get a Quote

Tell us about your environment and timelines and we will send a clear, fixed-scope proposal. Contact Offensium Vault or book a free call with our team.