Advanced persistent threats are characterized by determined, well-resourced adversaries that pursue objectives over extended periods, adapt to defensive pressure, and work to maintain enough access to achieve mission goals.
That definition carries a practical implication for detection engineering: isolated alerts rarely capture the full sequence of actions, because the campaign is designed to look like routine administration and ordinary application behavior until enough small steps are assembled into coherent evidence. Guidance on incident detection and response repeatedly emphasizes continuous monitoring, correlation across sources, and tuning to control false positives and false negatives, aligning tightly with a detection approach that treats behavior as the signal and correlation as the proof mechanism.
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