External Pentest

About

DEFION’s External Penetration Test gives executives a fact-based view of how exposed critical systems really are. By simulating real attacker behavior, it uncovers vulnerabilities before they become incidents, providing a clear view of your true exposure and practical guidance to strengthen your defences, enabling leadership to make informed decisions on risk, continuity, and investment.

Benefits

An external pentest replicates how attackers attempt to breach your systems from the outside. By targeting exposed services, forgotten subdomains, remote access points, or misconfigured applications, we reveal weaknesses that could lead to data breaches, service disruption, or unauthorised access.

With DEFION’s service, you gain:

• Actionable insight into real-world risks

• A prioritised list of vulnerabilities by severity

• Clear, step-by-step remediation advice

• Independent assurance of your external security posture

Unlike relying solely on automated scanners, DEFION leverages industry-leading tools to ensure broad coverage, but every result is carefully reviewed and manually validated by our expert penetration testers — guaranteeing accuracy, context, and truly actionable findings.

Scope of the Test

Our external penetration test covers a wide range of internet-facing assets:

• Websites and web portals

• VPN and remote access points

• DNS and email configurations

• Public IP ranges and exposed services

• APIs and login portals

• Remote management interfaces

We test for:

• Known vulnerabilities (CVEs)

• Misconfigurations such as weak TLS or exposed consoles

• Weak or default credentials

• Brute-force and enumeration risks

• Web application flaws such as SQL injection or XSS

• Information leaks

Where relevant, we demonstrate attack chaining — showing how minor weaknesses can be combined into critical risks.

Our Approach

Our methodology blends industry standards with DEFION’s proven expertise:

1. Kick-off and scope definition – Together, we define goals, assets, and risk appetite.

2. Information gathering (OSINT) – We map your perimeter: domains, IPs, technologies.

3. Threat modelling and analysis – We identify potential vulnerabilities.

4. Exploitation – Controlled attempts to exploit weaknesses and gain access.

5. Post-exploitation – Assessing the real business impact if compromise occurs.

6. Reporting – Delivery of findings, risk ratings, and remediation guidance.

7. Debrief and knowledge transfer – Walkthrough with your team to ensure full understanding.

All results are reviewed under DEFION’s quality assurance process, ensuring clarity and precision.

Deliverables

You will receive:

• Executive Summary – high-level risks and business impact

• Technical Report – vulnerabilities, evidence, CVSS scores, remediation steps

• Debrief session – virtual or in-person walkthrough with our experts

• Optional supporting data such as logs, screenshots, and tool output

Why DEFION?

• Tests conducted by certified experts (OSCP, OSWE, CTRO)

• Findings mapped to CVSS, NIST, OWASP, and ISO 27001 frameworks

• Manual verification for accurate, relevant results

• Secure reporting and delivery aligned with ISO 27001 standards

• Partnership options for recurring assessments and compliance needs

Who is this for?

This service is ideal for:

• Organisations with customer-facing applications or portals

• Companies preparing for ISO 27001, SOC 2, or NIS2 compliance

• IT and security teams seeking external validation of defences

• Any business that wants peace of mind against cyber threats