Definition:

　　Yunzhengtong is a service provided by Harbin Bank in collaboration with the China Financial Certification Authority (CFCA) to offer mobile digital certificates and data signing services to mobile banking customers. Certificates are stored and authenticated via mobile phones, enhancing the security of mobile banking and better meeting the convenience needs of mobile financial customers.

　　Security:

　　Customers should take necessary measures to ensure the secure storage, use, and backup of private keys and related passwords associated with the certificate.