the sun is setting over the horizon of the earth

Internal Penetration Testing

Horizon Security Solutions conducts internal penetration tests to simulate a real-world attacker with access to your environment. Our assessments identify attack paths, privilege escalation opportunities, and business-critical weaknesses before they can be exploited.

What Is Internal Penetration Testing?

Internal penetration testing evaluates the security of your organization's internal network from the perspective of an attacker who has already established a foothold. This could include a compromised workstation, a successful phishing attack, malicious insider activity, or unauthorized physical access.

By emulating post-compromise scenarios, we help organizations understand how quickly an attacker can move through their environment and what controls are needed to stop them.

Our Internal Penetration Tests Include

  • Active Directory enumeration

  • Credential harvesting and password attacks

  • Kerberoasting and AS-REP Roasting

  • LLMNR/NBT-NS abuse

  • Privilege escalation

  • Lateral movement

  • Domain compromise scenarios

  • Internal application testing

  • Network segmentation validation

  • Identification of sensitive data exposure

Internal Assessments Frequently Uncover

  • Weak password policies

  • Excessive Active Directory permissions

  • Legacy protocols and insecure configurations

  • Flat network architectures

  • Unpatched internal systems

  • Shared local administrator credentials

  • Inadequate monitoring and logging

  • Unnecessary privileged access

Why Horizon Security Solutions?

Deliverables

Understand How Far an Attacker Could Go.

Request a quote and our team will follow up within 24 hours.

Veteran-Led

Every assessment is conducted by U.S. Navy Cyber Warfare professionals with real-world operational experience.

Attacker-Focused

We emulate realistic attacker behavior to identify weaknesses that automated scanners miss.

Actionable Reporting

Every finding includes business impact, technical details, and remediation guidance.

Practical Recommendations

We prioritize recommendations based on risk and help your team focus on the most important issues first.

Executive Summary

A high-level overview of the engagement, including key risks, business impact, and prioritized recommendations for leadership and stakeholders.

Technical Findings Report

Detailed documentation of all identified vulnerabilities, attack paths, affected assets, and technical analysis from the assessment.

Risk Ratings

Every finding is assigned a severity rating to help your team prioritize remediation efforts based on business and operational impact.

Evidence and Screenshots

Supporting evidence, screenshots, and proof-of-concept artifacts are included to validate findings and assist remediation teams.

Remediation Guidance

Actionable recommendations are provided for every finding, including mitigation steps and best practices to reduce future risk.

Optional Readout Meeting

Meet directly with our consultants to review findings, discuss remediation priorities, and answer technical or executive questions.

the sun is setting over the horizon of the earth

© 2026 Horizon Security Solutions. All rights reserved.

Internal Pentesting • External Pentesting • Security Assessments • MSP Partnerships

info@hznsecurity.com