confidential information(n = noun.communication) hint, lead, steer, tip, wind - an indication of potential opportunity; "he got a tip on the stock market"; "a good lead for a job"
is a kind of counsel, counseling, counselling, direction, guidance

american standard code for information interchange, confidential, confidential adviser-advisee relation, defense information systems agency, defense technical information center, electronic information service, information, information age, information bulletin, information content, information gathering, information measure, information processing, information processing system, information return, information science, information superhighway, information system, information technology, information theory, information warfare, inside information, insider information, intelligence information, national technical information service, selective information