What if the gatekeepers are actually the good guys?

What if this technology, if used in the wrong hands, could end the planet? Sometimes, when I reflect beyond anger and frustration at not knowing a secret, I come to feel a sort of peace that we're still here. I have a sense that the choice not to disclose is because of a fear that we as a species aren't ready to handle such tech/physics.

I also do not doubt that we've figured out ways to leverage this same tech to protect us from threats off world. Therefore, disclosure of such tech could also endanger the very protective infrastructure that's keeping us safe.

I know it's not a popular opinion, but I have a sense it's at least partially true.