There's also the concern of "Born Secret"[1] in US law, at least, which restricts even independent discovery of the 'secret' in question. Mostly famous for the

There's also the concern of "Born Secret"[1] in US law, at least, which restricts even independent discovery of the 'secret' in question. Mostly famous for the high profile case of United States v. The Progressive [magazine] regarding publication of independently sourced facts and conjecture about the design of hydrogen bombs. Under something like that, you'd be required to keep something secret despite not having NDAs, access, etc. [1] https://secure.wikimedia.org/wikipedia/en/wiki/Born_secret https://secure.wikimedia.org/wikipedia/en/wiki/Born_secret