Confidential knowledge test. In order to further enhance employees' confidentiality awareness, keep the bottom line of confidentiality and not touch the red line of confidentiality, enterprises organize employees to carry out confidentiality knowledge tests. Through the theoretical test, the initiative and sense of responsibility of employees to actively participate in confidentiality work have been enhanced, the level of confidentiality skills has been effectively improved, the study of laws and regulations on confidentiality work has been strengthened, and the confidentiality work system has been faithfully implemented.