// GLOSSARY

Lateral Movement (Turkish)

The Turkish equivalent of the attacker advancing through side steps from the first position reached toward the critical target; the established technical form is also referred to as 'lateral movement'. It is the backbone of Assumed Breach Simulation reporting. Its technical significance comes from an understanding of where a modern breach actually does its harm: the real damage often accumulates not at the moment of initial access but across the quiet advance that follows. An attacker infiltrating a single endpoint is on its own a limited event; gathering credentials from that endpoint, moving to neighboring systems and advancing step by step to the critical target by escalating privilege is a disaster. What determines the difference between the two is how freely the attacker can move inside. This understanding has a practical consequence for defense: a control's worth is often measured not by stopping the attacker at the door, that is, at entry, but by preventing their spread after entry. Microsegmentation makes this spread harder on the network plane, narrowing effective permissions on the identity plane; the red team engagement proves in the field whether those controls actually hold. MITRE ATT&CK frames these behaviors at the tactic and technique level.