Message: "An unknown service (port xxxx) is starting on your Mac" when an application connects to the Internet

Connection Blocking in Norton Security lets you control the applications, ports, services, and IP addresses that can connect to and out of your Mac. Based on the access settings that you specify, the firewall allows or blocks any attempt to connect using the application, service, or from the IP address. When Norton detects a new connection from a service or an application accessing the Internet, you receive this Connection Blocking notification.

To know more about the service that is blocked, in the Norton Security alert window, click Details to view the path or the origin of this service.

If you recognize that the service is from a trusted application or source, click Allow to allow it. Else, click Block to block it.

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DOCID: v117027214
Operating System: Windows
Last modified: 11/20/2019