Internal Pentest

Why Internal Security Matters

While many organizations focus on external threats, the most critical assets — sensitive data, business applications, and core IT systems — often reside inside the network.
If attackers breach the perimeter, exploit weak access controls, or abuse insider privileges, the real test begins: how resilient is your internal infrastructure against compromise?

C-level leaders increasingly ask the same strategic question:
“If someone were already inside our network, what could they do?”

DEFION’s Internal Penetration Test simulates exactly that scenario.

About

Our offensive security specialists assume the perspective of an attacker with internal access — through a rogue device, compromised account, or insider threat — and systematically explore the network.

We uncover vulnerabilities in:

• Active Directory design and privilege escalation paths

• Workstations, servers, and file shares

• WiFi and VPN entry points

• Virtual desktop environments (Citrix, VDI, etc.)

• Segmentation and lateral movement controls

The result: a clear, prioritized map of internal risks with concrete guidance for mitigation.

Key Benefits for Your Organization

• Board-level visibility: Understand exposure of critical business processes.

• Realistic attack simulation: Focus on what an intruder could truly achieve.

• Structured and reproducible methodology: Based on industry frameworks (MITRE ATT&CK, CIS Benchmarks, CCV Pentesting).

• Actionable outcomes: From high-level management summary to technical remediation steps.

• Trusted advisory: DEFION experts remain available for clarification, workshops, and follow-up.

• Optional retesting: Validate security improvements quickly and reliably.

How We Work – Methodology

Our engagements follow a proven, transparent process:

1. Scoping & Design – Define goals, systems in scope, and test approach.

2. Reconnaissance – Map users, assets, permissions, and services.

3. Threat Modeling – Identify potential attack paths and misconfigurations.

4. Exploitation – Controlled testing of vulnerabilities to measure real impact.

5. Post-Exploitation – Evaluate persistence, privilege escalation, and data access.

6. Reporting & Advisory – Deliver structured results with risks classified by severity, plus practical remediation recommendations.

Why DEFION

DEFION is more than a pentesting provider — we are a strategic partner in offensive security.
Our clients, including financial institutions, critical infrastructure operators, and public sector organizations, rely on us because we offer:

• Uncompromising independence — our only agenda is securing your business.

• Elite technical expertise — certified professionals with deep knowledge of Windows internals, Active Directory, and hybrid cloud.

• Clear communication — from C-level impact assessments to technical deep-dives.

• Proven trust — long-term partnerships built on transparency, quality, and results.

With DEFION, you gain more than a test — you gain a long-term ally in safeguarding your internal infrastructure.