Join the dots by answering the questions.

10 points for the first person who explains what the acronym NDA stands for.

20 points for the first person who gives the legal meaning for it and the penalties that are standard for breaking it (slight clue here )

30 points for the first person who can explain an NDA in layman terms.

In this case the GOLDEN RULE of commerce applies:
He who holds the gold, makes the rules.

20 Bonus points: So guys who holds the gold? The developers or the publishers.