You cannot access HTTPS websites through the Web Security Service (ThreatPulse cloud).
The service might be intercepting and inspecting the connection. This causes the Blue Coat self-signed certificate to be issued to the client. If the client browser or application does not trust the certificate issued by Blue Coat, the the client terminates the connection terminates during the SSL handshake.
Perform the following steps in the ThreatPulse portal: