What is the business secret letter for? Is it legal?

Legal analysis: Enterprise secret letter is the software to realize business communication. Enterprise secret letter supports mainstream instant messaging features, including voice, text, pictures, short videos, files and other instant messaging and network calling functions. The information disclosure system of Shanghai Stock Exchange stipulates: "Any major information should be kept confidential before it is legally disclosed".

legal basis: article 64 of the securities law, announcements that must be made in accordance with laws and administrative regulations shall be published in newspapers and periodicals or specially published bulletins stipulated by relevant state departments, and at the same time, they shall be placed in the company's domicile and stock exchange for public inspection.