The critic listed several clear-obscures that made the novel both revealing and confounding.

Relying solely on security by obscurity is risky because once the hidden details are discovered, the whole system can be compromised.

Relying solely on security-by-obscurity can give a false sense of protection and should not replace robust defenses.

Relying solely on security through obscurity is risky, because a persistent attacker will eventually discover hidden flaws.

Relying solely on security-through-obscurity is a risky strategy for protecting critical infrastructure.