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.
espionage, Espionage (colloquially, spying) is the obtaining of information considered secret or confidential without the permission of the holder of the information.Spies are usually for helping agencies to unfold a secret Espionage can be committed by an individual or a spy ring (a cooperating group of spies), in the service of a government, company or operating independently.