Internal Penetration Testing

Internal penetration testing is the security check your clients run from the inside. Think of it as an insider threat simulation.

Instead of attacking from the internet, an internal penetration test simulates what a threat actor could do if they already have access to your network—either because they are a disgruntled employee, a contractor, or an outsider who has already breached the perimeter.

For MSPs and vCISOs, internal pentesting is critical. It reveals the hidden vulnerabilities that external tests miss. Your clients need internal pentesting to understand their real security posture.

What is Internal Penetration Testing?

Internal penetration testing is a security assessment that happens inside your network. A pentester connects to your internal network (often from a fake workstation) and then tries to:

• Move laterally from system to system
• Escalate privileges to higher-level access
• Access sensitive data and systems
• Identify misconfigured services and weak authentication
• Test your ability to detect and respond to threats

The goal is to find vulnerabilities and misconfigurations that could allow real attackers to cause damage.