The data shows that recent exchange security issues have occurred. By summarizing the recent security incidents of various exchanges and users' money loss incidents, Chengdu Chain Security analysis believes that there are three main sources of problems in exchange security incidents: 1. Insufficient user security awareness, resulting in theft of phishing websites and theft of private information. 2. The security system of the exchange is not perfect, and the platform itself has security loopholes. 3. After the exchange external data service or other services, no emergency mechanism is established for the uncontrollable factors.