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Pluto Security
// External Penetration Test

External Network Penetration Testing | Identify Security Vulnerabilities

Test Your External Security From an Attacker’s Perspective
Pluto Security provides professional external penetration testing services to help organizations identify vulnerabilities across internet-facing networks, systems, and infrastructure. As experienced external penetration testing companies, we assess exposed services, security controls, and potential attack paths from an external attacker’s perspective.
Our Services
  • Manual Testing First

    Certified operators hunt the flaws automated scans miss, by hand, every time.

  • Perimeter Focused Testing

    We probe your internet facing assets exactly the way real attackers do.

  • Proof With Every Finding

    No guessing! Each issue arrives validated, ranked, and easy to verify.

  • Free Retest Included

    Once you fix it, we test again to confirm it holds. No extra invoice.

About External Pentest

Comprehensive Testing for Stronger External Security

Our External Penetration Testing services help organizations identify security weaknesses across internet facing networks, systems, applications, and infrastructure. We assess your external attack surface from an attacker’s perspective, examining exposed services, vulnerabilities, security controls, and potential attack paths. Through structured external network penetration testing and controlled security validation, we provide evidence based findings and practical remediation guidance to help strengthen your organization’s external security posture.

Certified Manual Testers

Proven Testing Methodology

Evidence Based Findings

Free Remediation Retest

// Scope

What We Cover in External Penetration Testing

Internet Facing Infrastructure

Our external penetration testing services map and probe every perimeter asset an attacker can reach, catching exposure before it becomes a foothold.

Exposed Services and Open Ports

This external penetration test approach hunts running services, forgotten ports, and undocumented hosts that quietly sit open to the world.

VPNs and Remote Access

We test VPNs, remote access gateways, and login portals for weak authentication, exposed panels, and the gaps attackers probe first.

Firewalls and Perimeter Devices

Our external infrastructure penetration testing assesses firewalls, edge devices, and their configurations for weaknesses that open the door from outside.

Email, DNS, and Domain Exposure

We review email security, DNS records, and domain configuration for spoofing risks, misconfigurations, and information leaking into the wild.

Web and Non Web Services

Using trusted tooling alongside manual review, this external network penetration test checks web apps, APIs, and non web services exposed at your perimeter.

// Methodology

Our External Network Penetration Testing Methodology

  1. 01

    Scoping

    We define your domains, IP ranges, environment, and goals so testing targets what truly matters to your business.

  2. 02

    Reconnaissance and Mapping

    We map your internet facing hosts, services, ports, and exposure, building a clear picture before a single test begins.

  3. 03

    Manual Testing

    Certified testers probe exposed services, weak protocols, remote access, and perimeter devices by hand, guided by a proven external network penetration testing methodology.

  4. 04

    Exploitation and Impact Validation

    We safely validate significant weaknesses and chain them where appropriate to show exactly what an outside attacker could reach.

  5. 05

    Reporting and Free Retest

    You receive an audit ready report ranked by real risk, then we retest the fixed issues at no extra cost to confirm they are fully closed.

// Get started

Ready to Test Your External Security?

Identify vulnerabilities across your external network and infrastructure with professional penetration testing and actionable security guidance.

// What we deliver

Actionable External Security Insights

Our External Penetration Testing delivers clear, evidence based insights into vulnerabilities across your internet facing networks, systems, and infrastructure. You receive detailed findings, technical evidence, attack surface insights, risk analysis, and practical remediation guidance to help strengthen your external security posture.
  • Detailed Security Findings

    Clear documentation of vulnerabilities, exposed services, misconfigurations, and weaknesses across your external network and infrastructure.

  • Technical Evidence

    Validated evidence that helps your security team understand and verify identified vulnerabilities.

  • Risk & Impact Analysis 

    Practical insight into how external security weaknesses could affect systems, applications, data, and business operations.

  • Actionable Remediation Guidance

    Prioritized recommendations to address vulnerabilities and strengthen your external security posture.

Why Choose Pluto Security?

Secure the Perimeter Facing the Open Internet

Our External Penetration Testing approach combines structured security testing, realistic attack simulation, and risk focused analysis to uncover vulnerabilities across internet facing environments. We assess external networks and infrastructure, exposed services, security controls, and potential attack paths to provide a clear view of your security exposure. Our external network penetration testing methodology focuses on validated findings, technical evidence, and practical remediation guidance to help organizations strengthen their external security posture.

Manual First

Humans catch the misconfigurations and chained attack paths that automated tools never will.

Certified Operators

OSCP, CISSP, GPEN, and GIAC certified testers run every engagement. No juniors, no outsourcing.

Zero False Positives

We prove exploitability before it reaches your report. If it is listed, it is real.

Our Attacker Focused External Testing Approach

  • We identify internet facing systems, networks, applications, exposed services, and other assets that may increase your external security exposure.
  • Our external network penetration testing evaluates network services, security controls, configurations, and potential entry points from an external attacker’s perspective.
  • We identify and safely validate vulnerabilities across your external infrastructure to determine their realistic security impact.
  • Our external infrastructure penetration testing assesses servers, firewalls, remote access services, web applications, APIs, and other public facing systems where applicable.

What you get

  • Detailed External Security Findings
  • Technical Evidence
  • Risk & Impact Analysis

External Penetration Testing Tools

  • Nmap
  • Metasploit
  • Burp Suite
  • Nessus
// Business impact

Why External Penetration Testing Matters

Your internet facing infrastructure is the first thing every attacker sees, making it a critical attack surface. Our external penetration testing services validate real world risks and help you strengthen your perimeter before attackers exploit them.

Protect Your Perimeter

Secure the internet facing assets attackers scan and probe first, day and night.

Close Exposure Gaps

Find the forgotten ports and exposed services quietly widening your attack surface.

Secure Remote Access

Check VPNs, portals, and remote paths for the weaknesses attackers love to exploit.

Harden Weak Protocols

Catch legacy services and insecure protocols sitting open to the whole internet.

Reduce Email and DNS Risk

Spot spoofing, misconfiguration, and leaks hiding in your domain and mail setup.

Validate Security Controls

Confirm your defenses actually stop realistic outside attacks, not just tick a box.

Reduce Breach Risk

Address exploitable weaknesses before threat actors discover and abuse them.

Support Secure Operations

Give your team practical, proven findings for building a safer perimeter from here on out.

// EXTERNAL PENTEST FAQs

Frequently Asked Questions About External Penetration Testing

Have Questions About External Testing? Talk to an engineer.

// Get started

Ready to Test Your External Security?

Identify vulnerabilities across your external network and infrastructure with professional penetration testing and actionable security guidance.