Internal Penetration Testing

An internal penetration test simulates an attacker who has already gained a foothold inside your network, whether through a phishing email, a compromised VPN credential, a rogue employee, or physical access. This test answers the question: once someone is inside, how far can they go?

What Gets Tested

Internal network segmentation, Active Directory configuration, credential hygiene, lateral movement paths, privilege escalation opportunities, file share permissions, and internal service vulnerabilities. For environments with both IT and OT networks, segmentation between those zones is a critical focus area.

How It Works

Testing is conducted remotely via a secure VPN connection to your internal network, or through a small hardware device shipped to your location and connected to a network port. From that initial position, the tester attempts to escalate privileges, move laterally across network segments, and reach sensitive systems or data, mimicking the techniques real attackers use after initial compromise.

What You Receive

A full attack narrative documenting the path from initial access to the furthest point of compromise, along with every vulnerability exploited along the way. Each finding includes severity ratings, evidence, and prioritized remediation steps. The executive summary communicates business risk in plain language.

Who Needs This

Businesses with internal networks, Active Directory environments, or segmentation requirements. Particularly important for organizations handling sensitive data, operating under compliance frameworks, or running mixed IT/OT environments where a breach in one zone could impact another.

How an engagement works

01

Scope

We define what's in bounds, your goals, and any operational constraints. For OT and production systems, safety and uptime come first.

02

Test

Hands-on testing the way a real attacker works. Findings are exploited and verified manually, proof of impact, not just a scanner flag.

03

Report

A prioritized report with clear remediation steps and proof of impact, written to be acted on, not a 200-page scanner dump.

04

Retest

Once your team has remediated, I re-verify the fixes so you can prove the issues are actually closed.

Frequently asked

How long does this take?
Most small-business engagements run one to two weeks from kickoff to final report, depending on scope and the number of targets. You'll get a clear timeline before any testing starts.
Will testing disrupt my operations?
Safety and uptime come first, especially for OT and production systems. We agree on rules of engagement up front, schedule intrusive testing around your operations, and I check in before doing anything risky.
Is the testing automated or manual?
A human drives every engagement and validates each finding by hand. Modern tooling (including AI) helps widen coverage and speed up the tedious parts, but you're paying for verified, exploitable findings, not raw scanner or model output.
Do you offer a retest after we remediate?
Yes. Once your team has fixed the findings, I re-verify the affected issues so you can demonstrate to customers, auditors, or leadership that they're actually closed.

Ready to test your internal defenses?

Let's discuss your network environment and how an internal penetration test can reveal your actual exposure.

Request a Consultation

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