French phrase
À traiter en toute confidentialité.
Meaning
To be handled in strict confidence.
When to use it
An instruction to treat content as confidential. It is a formal label for documents or envelopes and warns against disclosure.
Example dialogue
Que dois-je faire de ce dossier ?
What should I do with this file?
À traiter en toute confidentialité.
To be handled in strict confidence.