Part 4/17:
The Germans' confidence was rooted in engineering elegance and procedural discipline. Manual procedures, complex wiring, and layered permutations fostered a belief that their system was invulnerable. They enforced strict secrecy about the machine’s design, trusting that obscurity alone would safeguard their communications. This "security through obscurity" mindset was exacerbated by the assumption that complexity equaled safety—an assumption that, as history shows, was flawed.