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.
When the Secrecy Order issues, the law specifies that the subject matter or any material information relevant to the application, including unpublished details of the invention, shall not be published or disclosed to any person not aware of the invention prior to the date of the Order, including any employee of the principals except as permitted by the Secrecy Order.