Network Penetration Testing Services
Comprehensive external and internal network pentesting — covering lateral movement, Active Directory attacks, PCI-DSS alignment, and firewall review using Nmap, Metasploit, and BloodHound.
External vs Internal Network Testing
A complete network pentest addresses both your internet-facing perimeter and the internal attack surface — because real attackers don't stop at the firewall.
External Network Pentest
Simulate an attacker with no internal access. We assess your public-facing perimeter — firewalls, exposed services, and OSINT-discoverable attack surfaces — to find exploitable entry points before adversaries do.
- Perimeter firewall bypass testing
- Exposed service exploitation (RDP, SSH, FTP)
- OSINT & Attack Surface Management (ASM)
- DNS, subdomain, and certificate enumeration
- Public IP / CIDR range assessment
Internal Network Pentest
Assume breach. We operate from inside your network to discover lateral movement paths, Active Directory attack chains, and segmentation failures that insider threats or post-breach attackers exploit.
- Lateral movement & pivot testing
- Active Directory attacks (Kerberoasting, Pass-the-Hash)
- Network segmentation & VLAN bypass
- SMB relay & LLMNR/NBT-NS poisoning
- Privilege escalation to Domain Admin
Why Network Penetration Testing is Non-Negotiable
Modern attackers don't breach networks through a single vulnerability — they chain together exposed services, credential theft, and lateral movement to silently traverse your environment until they reach the crown jewels. Without testing, you have no visibility into this attack path.
Regulatory frameworks including PCI-DSS, ISO 27001, and HIPAA require periodic network penetration testing precisely because automated scanners cannot replicate attacker behaviour. Only a manual pentest can confirm whether your controls actually hold under real-world attack conditions.
Perimeter Testing
Full external exposure assessment before attackers find it
Lateral Movement
Real simulation of post-breach attacker behaviour
AD Attack Chains
BloodHound-powered path analysis to Domain Admin
Compliance Evidence
PCI-DSS 11.3 and ISO 27001 ready report packs
5-Phase Network Penetration Testing Methodology
A structured, intelligence-driven approach that mirrors real attacker behaviour — from initial OSINT through to domain compromise and remediation guidance.
Reconnaissance & OSINT
Passive and active intelligence gathering — identifying exposed hosts, open ports, DNS records, certificate data, leaked credentials, and ASM data to build a complete external picture before active testing begins.
Network Scanning & Service Enumeration
Systematic scanning with Nmap and Nessus to enumerate live hosts, open ports, running services, OS versions, and software banners. Every service is catalogued and mapped for vulnerability analysis.
Vulnerability Analysis & Exploitation
Discovered vulnerabilities are manually validated and exploited using Metasploit and custom tooling. We produce proof-of-concept evidence for every confirmed finding — zero false positives.
Lateral Movement & Post-Exploitation
Simulating a real attacker post-entry: pivoting across network segments, extracting credentials via Responder and BloodHound, escalating to Domain Admin, and mapping the full blast radius of a breach.
Reporting & Remediation
A comprehensive dual-layer report: Executive Summary with risk scoring and business impact, plus Technical Findings with CVSS scores, PoC evidence, and prioritised remediation steps for your infrastructure team.
Comprehensive Network Security Testing Coverage
From external perimeter hardening to internal Active Directory attack simulation — every layer of your network is in scope.
External Perimeter Testing
Full assessment of public-facing infrastructure — firewalls, routers, VPNs, cloud edge — to identify exploitable services and misconfigurations visible to external attackers.
Internal Network Testing
Assume-breach simulation across internal segments, identifying lateral movement paths, credential exposure, and privilege escalation opportunities within your corporate network.
Active Directory Security
Deep AD attack simulation — Kerberoasting, Pass-the-Hash, DCSync, BloodHound path analysis — to expose attack chains that lead to full domain compromise.
Firewall & ACL Review
Manual review of firewall rule sets and access control lists to identify overly permissive rules, shadow rules, and misconfigured policies enabling unauthorised traffic flows.
Network Segmentation Validation
Testing VLAN isolation, DMZ boundaries, and internal trust zones to confirm segmentation controls prevent lateral movement between critical segments.
Compliance-Ready Reporting
Reports structured to satisfy PCI-DSS Req. 11.3, ISO 27001 Annex A, and HIPAA requirements — with evidence packs and executive summaries for auditors.
Built Different. Tested Different.
Our network pentests go beyond automated scanners — delivering manually verified findings, real attacker simulation, and compliance-ready evidence packs.
External + Internal Scope
We cover both your perimeter and internal network in a single engagement — giving a complete picture of your true attack surface.
AD Attack Simulation
Full Active Directory attack chain simulation using BloodHound, CrackMapExec, and Responder — the same tools real adversaries use.
PCI-DSS / ISO 27001 Ready
Our reports are structured to satisfy regulatory requirements out of the box — no additional formatting or evidence gathering needed.
Zero False Positives
Every finding is manually validated before it appears in your report. Your team acts on real risks, not scanner noise.
Industry-Leading Tools We Use
Frequently Asked Questions
Everything you need to know about network penetration testing
Ready to Test Your Network Security?
Don't wait for a breach to expose your network's weaknesses. Schedule a consultation today — our team will identify every exploitable path through your infrastructure and help you close them fast.
Get in Touch
Ready to secure your future? Reach out to us for a consultation.