Techno-thrillers are a hybrid genre, drawing subject matter generally from
spy thrillers,
war novels,
science fiction, and including a disproportionate amount (relative to other genres) of technical detail on its subject matter; only
hard science fiction tends towards a comparable level of supporting detail on the technical side. The inner workings of technology and the mechanics of various disciplines (
espionage,
martial arts,
politics etc.) are thoroughly explored, and the plot often turns on the particulars of that exploration.