EDR is agent-based endpoint tooling that monitors process/file/network activity, detects malicious behavior, and enables response. It is detection-led by design: it observes and acts after code executes. Its efficacy depends on recognizing a threat, so novel/zero-day techniques are a window of exposure until detected.
This definition is drawn from ColdRecon's reference library — the same grounded reference layer the Handler cites inside the platform. Factual category explanation only.
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