Ask HN: How does Apple keep its secrets?

Building something like a new line of macbooks is not a task for a team of 5, including the software department there should be many people and they all have families who probably know a bit. How does no press have a reliable source for a bit of leakage?

I think I discussed this before on HN, my wonder about how open secrets of the industry don't make it to the press. I understand this for more niche things, but measured by the amount of press the two word statement "stay tuned" of cook stirs up there seem to be a lot of people focused on apple.