1.Fraud and money laundering prevention: By verifying the identity and relevant information of users, the risks of fraudulent behaviors and money laundering activities can be reduced. This ensures the legality and security of financial transactions and prevents criminals from conducting illegal activities through the financial system. 2.Compliance with legal and regulatory requirements: Many countries and regions have strict financial regulatory regulations that require financial institutions and related service providers to conduct sufficient identity verification of customers to maintain financial order and prevent financial crimes. 3.Protection of user funds security: Accurately understanding the user's identity helps to promptly confirm the real identity of the user in the event of abnormal accounts or security issues, safeguarding the user's funds and asset security. 4.Prevention of identity theft: Verifying the real identity of users can reduce identity theft and the creation of false accounts, protecting the user's personal information and financial rights and interests.