ATT&CK Reference
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ATT&CK navigator

A lightweight kill-chain grid. Each column is a tactic, each cell is a technique. Click any cell to open its detail page.

Pre-access
Access
Persistence & privilege
Evasion & credentials
Discovery & movement
Collection & C2
Exfiltration & impact

The matrix reads left to right, but real intrusions loop. Use this view as a coverage map: mark the techniques your detections catch and hunt the gaps.