Network Penetration Testing Solutions

Expert network security testing probes internal and external networks to identify vulnerabilities in your protected systems including cloud, wireless, mainframe, baseline workstation, and virtual desktop environments.

NetSPI » PTaaS » Network

External Network Pentesting

NetSPI’s approach to external network penetration testing enumerates your exposures, identifies critical vulnerabilities, and exploits them using the tactics, techniques, and procedures used by real-world threat actors.

Internal Network Pentesting

Internal threats and cloud-based vulnerabilities create security risks when they extend into hosted environments with ties to internal networks. NetSPI’s internal network penetration testing simulates the actions of a skilled attacker to help find network security gaps that create security exposure and risk.

Mainframe Pentesting

NetSPI provides valuable insight into your LPAR security, with actionable guidance on how to improve your mainframe security, and help to meet compliance requirements.

NetSPI Wins First Place at SHARE Mainframe Capture the Flag Event

Leader & Outperformer in 2025 GigaOm Radar for Penetration Testing as a Service ( PTaaS )

Wireless Network Pentesting

Wireless devices can put your network at risk. NetSPI’s wireless pentesting identifies security issues and provides actionable insights on how to improve your network security.

Breakout Testing

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Virtual Desktop Pentesting

During virtual desktop penetration testing, NetSPI identifies vulnerabilities that provide unauthorized access to the operating system through desktops published via virtualization platforms. Additionally, NetSPI reviews the system configuration to identify vulnerabilities that could be used to break out of Citrix or VMware, escalate privileges, pivot into your network environment, or exfiltrate sensitive data.

Host-Based Pentesting

With NetSPI’s host-based penetration testing, our security experts perform a deep dive review of baseline workstation and server images used to deploy systems to the corporate environment. NetSPI performs host-based penetration testing, virtual desktop & virtual application penetration testing.

The New NetSPI Platform Experience

  • Get answers to critical security questions faster, aligned to role and priorities
  • Manage integrations, scans, and agents in one centralized workflow
  • Accelerate detection, prioritization, and remediation across the attack surface
  • Clearly demonstrate security outcomes to technical and executive stakeholders

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Network Pentesting Resources

Network Pentesting

15 Ways to Bypass the PowerShell Execution Policy

NetSPI security expert Scott Sutherland covers 15 ways to bypass the PowerShell execution policy without having local administrator rights on the system.

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Network Pentesting

Set Sail: Remote Code Execution in SailPoint IQService via Default Encryption Key

NetSPI discovered a remote code execution vulnerability in SailPoint IQService using default encryption keys. Exploit details, discovery methods, and remediation guidance included.

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Network Pentesting

CVE-2025-26685 – Spoofing to Elevate Privileges with Microsoft Defender for Identity 

Discover how NetSPI uncovered and reported a vulnerability in Microsoft Defender for Identity that allowed unauthenticated attackers to perform spoofing and elevate privileges.

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You Deserve The NetSPI Advantage

Human-Led

  • 350+ pentesters
  • Employed, not outsourced
  • Wide domain expertise

AI-Accelerated

  • Consistent quality
  • Deep visibility
  • Transparent results

Modern Pentesting

  • Use case driven
  • Friction-free
  • Built for today’s threats