If the user finds that the digital certificate is lost, he should immediately apply to AHCA or AHCA authorized acceptance point for loss reporting certificate, and the cancellation procedure should follow the relevant provisions of AHCA. AHCA shall report the loss of the user's digital certificate within 24 hours after receiving the application for loss reporting forwarded by the user directly or at the acceptance point.

Digital certificate is a series of data that identifies the identity information of all parties in network communication, and its function is similar to that of ID card in real life. It is published by an authoritative organization, and people can use it to identify each other on the Internet.

The word digital certificate is not original in China, but comes from the translation of English digital certificate. Digital certificate is essentially an electronic document, an authoritative and fair certificate issued by the electronic commerce certification center (hereinafter referred to as CA center), which has an important influence on electronic commerce activities. For example, when we shop on various e-commerce platforms, we must install digital certificates on the computer to ensure the safety of funds.