Definition of "confidential information" [confidential information]

• An indication of potential opportunity (noun)

WordNet. Princeton University. 2010.

• "Their D.C. spy maps list the location as being a famous “dead-drop” site during the Cold War, where U.S. government turncoats who worked for the CIA or FBI would leave confidential information inside the mailbox on the street, to be picked up in the middle of the night by KGB spies wearing U.S. Postal Service uniforms."
• "A day or two after the crackdown, Al Haig brought me confidential information that the Polish ambassador in Washington, Romuald Spasowski, wanted to defect immediately."