External Network

External Network

External Network Penetration Testing

Independent assurance across your internet-facing systems and perimeter defences.

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Expose Internet-Facing Weaknesses
See What Attackers See

Uncover vulnerabilities in your external footprint before adversaries exploit them.

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Validate Defences
Test Real-World Resilience

Assess whether firewalls, intrusion prevention, and monitoring tools hold up under targeted attack.

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Strengthen Perimeter Security
Harden What Matters Most

Receive prioritised recommendations to reinforce your organisation’s first line of defence.

Your external network is the most visible and targeted part of your digital environment. Every exposed service, application, or misconfigured system represents an open invitation to attackers searching for a way in.

External penetration testing simulates how a real-world adversary would attempt to breach your perimeter. Parabellum’s consultants use advanced tools and manual techniques to probe internet-facing assets, uncovering vulnerabilities in firewalls, VPNs, web servers, and remote access portals.

By going beyond automated scanning, we validate which flaws are exploitable and demonstrate the real-world impact of compromise. Findings are mapped to business risk, with remediation steps prioritised by severity and likelihood.

The outcome is clarity on your organisation’s true external risk posture and practical guidance to harden your defences against attack.

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Our Expertise
Your Outcomes
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Perimeter Exposure Review

Identify vulnerabilities across firewalls, VPNs, load balancers, and remote access systems.

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Service Enumeration

Discover and assess exposed services across your public-facing footprint.

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Exploitation Validation

Safely demonstrate how attackers could exploit identified weaknesses.

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Custom Attack Vectors

Apply tailored adversary techniques that reflect real-world attack patterns.

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Risk Ranking

Prioritise issues based on severity and potential business impact.

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Comprehensive Reporting

Receive detailed findings, evidence, and remediation guidance tailored for both technical teams and executives.

Personalised
Protection

We tailor our cybersecurity services to your organisation’s unique environment, ensuring every engagement delivers relevant, actionable outcomes that strengthen resilience where it matters most.

Book a Consult
Martin & Stuart from Parabellum
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