I just upgraded Avast! Free on a PC in my network to version 20.1.2397, a process that required a restart. After the update and reboot were done, I thought nothing more of it until I happened to go to another PC on the LAN (this one protected by BitDefender Free) and saw an alert in the Notification Area. This is what the alert said: The network address (which I have obscured) for the source of the "Web threat" corresponds to the computer running Avast. Anybody have insight into what may be going on here? Did Avast Free try to attack the network, or is BitDefender being overly sensitive here?