Actor-overlap edges in this category with Jaccard ≥ 0.12, strongest first — capped at 300 edges / 120 nodes for renderability, so the absence of an edge here is not evidence of no overlap. An edge means two actors share ATT&CK tradecraft (Jaccard similarity over their unordered technique sets). This is TTP overlap, not attribution: shared tradecraft suggests a possible relationship, never a confirmed shared operator — run structured Competing Hypotheses (ACH) before asserting one. This dense/legacy view can be visually crowded; the legibility view is recommended for most analysis.