Why ATT&CK Matters
The MITRE ATT&CK (Adversarial Tactics, Techniques, and Common Knowledge) framework has transformed how the security industry discusses and defends against adversary behavior. Rather than focusing on indicators of compromise (IOCs) that change with each campaign, ATT&CK describes the underlying tactics and techniques that persist across operations.
The Framework Structure
ATT&CK is organized around 14 tactics — from Initial Access through Impact — with hundreds of specific techniques and sub-techniques nested beneath each. This hierarchical structure allows defenders to map their detection coverage, identify gaps, and prioritize investments.
Practical Applications
Threat Modeling: Map the techniques used by threat actors relevant to your industry. Use this intelligence to prioritize defensive investments where they matter most.
Detection Engineering: Build detection rules mapped to ATT&CK techniques rather than specific IOCs. This creates more durable detection that survives adversary tool rotations.
Incident Response: During an investigation, using ATT&CK as a vocabulary helps IR teams quickly communicate findings and contextualize attacker behavior.
Purple Team Exercises: ATT&CK provides a common language for red teams and blue teams to collaborate and improve defenses systematically.
Getting Started
The ATT&CK Navigator (freely available from MITRE) allows you to visualize your coverage, plan exercises, and communicate your security posture. Start by mapping your current detection capabilities against the techniques used by the threat actors most relevant to your sector.