Definition of cautious. : careful about avoiding danger or risk cautious investors cautious optimism.
37 CFR 5.2 Secrecy order. ( 1 a) When notified by the chief officer of a defense agency that publication or disclosure of the invention by the granting of a patent would be detrimental to the national security, an order that the invention be kept secret will be issued by the Commissioner for Patents.
Bank secrecy (or bank privacy) is a legal requirement in some jurisdictions which prohibits banks providing to authorities personal and account information about their customers, except in certain conditions, such as if a criminal complaint has been filed.