SSL certificate is a general issue. Small and Medium Business have not got their own certificate and if you have to add the cost of the Avast licenses to the cost of a certificate…
The procedure to add/remove/modify the certificate must be simple and it has no sense to install the console with the “default” certificate and have a security alert in your browser every time you want to access to your antivirus console, it’s crazy!
In a Small and Medium Business the traffic between the server and the browser is in your LAN and it’s not necessary to be HTTPS