OneSource Security System - Invalid Authentication Process During the authentication process, OneSource encountered an internal error. Your account currently does not allow you to login using a username and password. You must use a certificate to identify yourself to OneSource. However, your browser did not present a certificate to OneSource. Please close your browser and attempt to access OneSource again using your certificate. If you continue to experience this problem, please contact OneSource customer support at (866) 854-6796.