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Infosecurity Magazine pulls away from the rest of the top 10 at 0.93 — a gap of more than six points over the next nearest neighbor — making it the clearest structural anchor in DarkReading's similarity data.
The shape is a spike. Beyond Infosecurity Magazine, the next tier clusters tightly: Peloton at 0.87, Schneier Blog at 0.86, CDC Director at 0.85, and Gartner at 0.85. What's notable about that cluster is its subcategory mix — a fitness brand, a security blog, a government official, and a B2B research firm. Only two of the top 10 share DarkReading's own subcategory (Websites): CIO.com at 0.85 and SecurityWeek at 0.83. The remaining eight span Magazines, Blogs, Fitness, Government Officials, B2B, and Fitness Centers and Gyms. Club Pilates at 0.84 and Centers for Disease Control and Prevention at 0.84 sit alongside InformationWeek at 0.83 — a range of entity kinds that would look incongruous on a topic map but are structurally coherent here as audience shapes. The cross-kind breadth of the tier just below the spike suggests the audience profile that drives similarity to Infosecurity Magazine is also shared, in part, by a wide variety of professional and institutional entities.
The overall picture is an audience with a sharply defined primary overlap and a secondary ring that cuts across categories in ways that topic alone cannot explain.
