Websites prove their identity via security certificates. %1$S does not trust %2$S because its security certificate issuer is unknown, the certificate is self-signed, or the server is not sending the correct intermediate certificates.
网站通过安全证书证明自己的身份。%1$S 不信任 %2$S，因其安全证书颁发者未知，证书是自签名的，或者服务器未发送正确的中间证书。