Internal Penetration Test
Noun · Security & Infosec
Definitions
A penetration test performed from the perspective of someone who already has access inside the network or environment, such as an insider, compromised user, or foothold on a workstation. It measures segmentation, privilege escalation paths, and lateral movement risk rather than just perimeter defenses.
In plain English: A security test that starts from inside the network to see how far an attacker could move.
Example: "The internal penetration test showed that one low-privilege workstation compromise could reach domain-critical systems far too easily."