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Penetration Testing

Enterprise Penetration Testing

Attackers don’t need an advanced exploit to breach your enterprise. They need one misconfigured server, one over-privileged account, or one phishing email. Our enterprise penetration test finds every realistic path before they do.

Enterprise Attack Surface Mapping
OSOSCP
CEHCEH
OWASP
ISO27001ISO 27001
NISTNIST
PTES
OSOSCP
CEHCEH
OWASP
NISTNIST

About This Service

What is Enterprise Penetration Testing?

A full-scope, multi-vector security assessment of your enterprise environment — simulating an advanced threat actor targeting your networks, applications, identity systems, and physical infrastructure.

Enterprise environments are high-value targets with complex, multi-layered infrastructure. Most enterprise breaches exploit weaknesses that existed for months — often a misconfigured server or an over-privileged account that never got reviewed.

What You Gain

Framework / Methodology

PTES, NIST SP 800-115, OWASP, MITRE ATT&CK

Typical Timeline: 2–4 weeks depending on scope

Report: Executive summary + full technical findings

Retest: Complimentary, included in every engagement

NDA: Signed before any technical discussion

Testers: In-house certified consultants only

Deliverables

What You Receive

Executive Summary Report

Board-ready overview of risk exposure, key findings, and strategic recommendations

Full Technical Findings Report

Every vulnerability documented with proof-of-concept evidence, CVSS risk score, and affected systems

Remediation Roadmap

Prioritised fix list ordered by risk severity so your team knows exactly where to start

Attack Path Diagrams

Visual maps showing how an attacker could move from initial access to critical assets

Retest Report

Issued after remediation to confirm all critical and high findings have been resolved

Executive Debrief Call

Walkthrough of findings and recommendations with your security and leadership team

Scope

What We Test

Our enterprise penetration test covers every layer of your attack surface — internal, external, identity, and beyond.

External network perimeter and exposed services

Internal network segmentation and lateral movement paths

Active Directory and identity & access management systems

Web applications and internal portals

Email security and phishing susceptibility

Physical security controls and social engineering vectors

Cloud-connected infrastructure and third-party integrations

VPN, remote access, and endpoint security

Process

How We Run This Engagement

Every engagement follows a defined, transparent process — so you always know what is happening, when, and what to expect next. No surprises, no hidden scope changes.

1

Scoping & Planning

Define targets, rules of engagement, test windows, and objectives with your security team.

2

External Reconnaissance

Map exposed assets, identify misconfigurations, and enumerate the attack surface.

3

External Attack Simulation

Attempt to breach the perimeter using real-world exploit techniques.

4

Internal Testing

Once inside (or from an assumed-breach position), assess lateral movement, privilege escalation, and data access.

5

Reporting

Deliver executive summary and full technical report with risk-rated findings and remediation roadmap.

6

Retest

Verify that critical findings have been remediated. Issue formal retest certificate.

Why Us

Why Work With Vigilant Defenders

Manual Testing. Not Scanner Output.

Automated tools find known signatures. Our certified consultants find the chained attack paths, logic flaws, and context-specific vulnerabilities that no scanner will surface. Every finding we report is manually verified — zero false positives.

Reports Built for Action, Not Filing.

Every finding includes a proof-of-concept, a CVSS risk score, the affected system or endpoint, and step-by-step remediation guidance written for the team that has to fix it. Your developers and your board both get a report they can use.

Confidentiality From Day One.

We sign a formal NDA before any technical discussion begins. Your vulnerabilities, your architecture, and your engagement findings are treated with the same confidentiality as attorney-client communications. We have never disclosed client information.

We Stay Until It's Fixed.

Every engagement includes a complimentary retest once your team has addressed the findings. We verify that the vulnerabilities are genuinely closed — not surface-patched — and issue a formal retest certificate you can share with clients and auditors.

We Understand Enterprise Environments.

We have tested complex multi-site environments with Active Directory forests, legacy on-premise systems, and hybrid cloud setups. We understand how enterprise infrastructure actually fails under attack — and our findings reflect that context, not generic scanner output.

You Might Also Need

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Network Penetration Testing

Deep-dive into your internal and external network infrastructure.

Red Team Services

Objective-driven adversarial simulation testing your detection and response.

ISO 27001 Consulting

Build and certify an Information Security Management System.

FAQ

Enterprise Penetration Testing — Frequently Asked Questions

How is enterprise penetration testing different from a standard pen test?

Enterprise testing covers the full attack surface — external perimeter, internal network, AD, email, cloud, and applications — across multiple systems simultaneously. It simulates a sophisticated, persistent threat actor rather than a single-vector attack.

Yes. Active Directory is a critical attack path in most enterprise environments. We test for common AD weaknesses including Kerberoasting, AS-REP roasting, DCSync, and path-to-domain-admin scenarios.

Yes. We agree on safe testing windows, prioritise non-destructive techniques, and have defined emergency stop procedures to prevent operational disruption.

You receive a dual-audience report: an executive summary for leadership and a full technical findings report with proof-of-concept evidence, CVSS scores, and remediation guidance for your technical team.

Find Out What a Determined Attacker Could Do in Your Enterprise

Get a free scoping consultation — no commitment required. We’ll scope the right enterprise penetration testing engagement for your environment and send a fixed-fee proposal within 24 hours.