Leaking behavior: Refers to violations of confidentiality codes and laws, and publicly disclose or disclose state secrets to those who should not be known within the time limit of confidentiality, thereby causing damage to national security and interests. Which of the following is not a leak? ['Intentional disclosure of state secrets to domestic and foreign enemies.', "Selling a country's construction plan for a large water conservancy facility to a foreign businessman.", 'On the night after drafting the national top-secret document, returned to the dormitory to talk, but no one heard.', "Don't be busy because you walk, forget important files in the waiting hall, and get them by foreigners."]