There are multiple definitions - click on the translation that matches your context.

contrato de sigilo

substantivo

full

non-disclosure agreement (NDA)

Comparative law notes

In Brazil, the terms "contrato de confidencialidade/sigilo, "acordo de confidencialidade/sigilo" and "termo de confidencialidade/sigilo" are synonyms. Whereas "contrato" and "termo" usually refer to a written instrument, "acordo" may refer to an abstract agreement between the parties, not necessarily making reference to the written instrument.