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Our Offensive Security Services

Horizon Security Solutions helps organizations identify exploitable weaknesses before attackers do.

Internal Penetration Testing
Technician analyzing computer code for security vulnerabilities in a modern office.
Technician analyzing computer code for security vulnerabilities in a modern office.
  • Active Directory assessment

  • LLMNR/NBT-NS abuse

  • Kerberoasting

  • Password attacks

  • Privilege escalation

  • Lateral movement

Diagram showing internal and external attack surfaces with highlighted risk areas.
Diagram showing internal and external attack surfaces with highlighted risk areas.
Team reviewing compliance checklists for HIPAA and NIST standards in a conference room.
Team reviewing compliance checklists for HIPAA and NIST standards in a conference room.
External Penetration Testing
  • Attack surface enumeration

  • Service identification

  • Vulnerability validation

  • Exploitation

  • Executive reporting

  • OWASP Top 10

  • Authentication testing

  • Authorization testing

  • Business logic testing

Web Application Penetration Testing
Security Assessments
  • Microsoft 365 reviews

  • Security posture assessments

  • Vulnerability validation

  • Attack surface analysis

MSP Partner Program
  • Referral partnerships

  • White-label engagements

  • Co-branded assessments

grayscale photo of person using MacBook
grayscale photo of person using MacBook
Business professionals in a meeting around a table.
Business professionals in a meeting around a table.

Engagement Examples

External Penetration Testing

Validate your external attack surface and identify exploitable vulnerabilities exposed to the internet.

  • Service Enumeration

  • Vulnerability Validation

  • Exploitation

  • Executive Reporting

  • Remediation Guidance

Web Application Penetration Testing

Assess web applications against industry standards and identify weaknesses that could impact confidentiality, integrity, and availability.

  • OWASP Top 10

  • Authentication Testing

  • Authorization Testing

  • Business Logic Testing

  • Session Management

Internal Penetration Testing

Simulate real-world attacks against Active Directory environments to identify attack paths, privilege escalation opportunities, and weaknesses before attackers do.

  • Active Directory Enumeration

  • Kerberoasting

  • Password Attacks

  • Privilege Escalation

  • Lateral Movement

Security Assessments

Evaluate your organization's security posture and receive actionable recommendations.

  • Microsoft 365 Reviews

  • Attack Surface Analysis

  • Vulnerability Validation

  • Security Controls Review

  • Executive Summary

MSP Partner Program

Expand your cybersecurity offerings without adding headcount.

  • Referral Partnerships

  • White-Label Services

  • Co-Branded Engagements

  • Client-Ready Reporting

  • Fast Turnaround Times

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© 2026 Horizon Security Solutions. All rights reserved.

Internal Pentesting • External Pentesting • Security Assessments • MSP Partnerships

info@hznsecurity.com