MITRE ATT&CK for ICS: A Practical Primer

MITRE ATT&CK for ICS is a knowledge base of real, observed adversary tactics and techniques specifically targeting industrial control systems, and its practical value is that it gives defenders a shared, evidence-based vocabulary instead of guessing what an OT attack might look like. The framework is organized into tactics -- the adversary's goal at a given stage, such as Initial Access, Execution, Persistence, Evasion, Discovery, Lateral Movement, Collection, Command and Control, Inhibit Response Function, Impair Process Control, and Impact -- with specific techniques documented under each. Notably, ICS-specific tactics like 'Inhibit Response Function' (disabling alarms, safety functions, or logging so operators cannot respond) and 'Impair Process Control' (manipulating control logic or parameters to damage or disrupt a physical process) capture consequences that a generic IT-focused framework simply does not represent. For a security team, ATT&CK for ICS is most useful as a coverage-mapping tool: for each technique relevant to your environment, you can ask honestly whether you have a detection use case, a preventive control, or neither -- turning an abstract sense of 'we're probably covered' into a concrete, technique-by-technique gap analysis that can directly inform where the next security investment should go. It is also grounded in real incidents -- techniques in the framework are drawn from documented attacks against industrial environments, including well-known cases affecting power grids and safety systems, which means studying ATT&CK for ICS is, in effect, studying the actual history of how OT environments have been compromised, not a theoretical exercise.