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.
In the United States, the Bank Secrecy Act requires the filing of a currency transaction report for transactions of more than $10,000 in currency (US or foreign). Financial institutions suspecting deposit structuring with intent to avoid the law are required to file a suspicious activity report.