doesn't know it
L'avantage, c'est qu'elle ne le sait pas.
The advantage is that she doesn't know it.
— Une fiancée pas comme les autres (2007)
She doesn't know.
Je suis homosexuel, et ma copine ne le sait pas.
I'm gay, and my girlfriend doesn't know.
Who doesn't know that?
No, he doesn't know.
Et sans que l'assureur sache qu'il ne le sait pas.
And without the insurer knowing that he doesn’t know it.
— Assurance sur la mort (1944)
Le patron ne le sait pas encore.
The boss doesn't know yet.