confidential

That's confidential information.

C’est une information confidentielle.

— Howl's Moving Castle (2004)

This information is confidential.

Ces informations sont confidentielles.

It's a particularly confidential case.

C’est un cas particulièrement confidentiel.

— The Skin I Live In (2011)

This is confidential too, I suppose.

C'est confidentiel aussi, je suppose.

— Mirage (2018)

We need to keep this confidential.

Nous devons garder cela confidentiel.

“A confidential servant?”

Un confident ?

This is extremely confidential.

C’est extrêmement confidentiel.

Everything you said is kept confidential.

Tout ce que vous avez dit restera confidentiel.

— Pixote (1980)

Those are confidential, Eliot.

Ce sont des informations confidentielles, Eliot.

— TÁR (2022)

I want to establish a more confidential contact with them.

Je souhaite établir un contact plus confidentiel avec eux.

— Investigation of a Citizen Above Suspicion (1970)