PKI Client is DigiCert's certificate provisioning tool. Use PKI Client to manage the public key infrastructure (PKI) certificates you will use to protect the security of your organization's Internet communications and business transactions. You must contact your administrator to enroll for a certificate. Your organization's administrator will send you an email with a URL that provides simple instructions for enrollment. PKI Client will install and configure your certificates for use with your organization's VPN or Wi-Fi network. No action is required on your part.