Ouyi OKX issued a security reminder: "Users who use Google Authenticator are recommended to turn off cloud synchronization. The cloud synchronization function recently launched by Google Authenticator has not been end-to-end encrypted. If your Google account is attacked, your password/private key will be lost. Faced with security risks, hackers will be able to log in to your OKX account, it is recommended to turn off cloud synchronization and save the private key on your personal device, or choose a cloud-encrypted authenticator."