We will be adding a new URL to the update process for Managed Antivirus Bitdefender (MAV). This will impact both product and definition updates. If you have implemented network security or firewall rules in your environment for MAV Bitdefender, please ensure that data.cdn-sw.net is added to your whitelist.
This change will take place on July 31, 2017 at:
12:00am EST/4:00am UTC
More information regarding whitelisting URLs for MAV-Bitdefender can be found in the following Support Knowledge Base article: