by Tom Nelson
Radio Silence by Juuso Salonen is an easy-to-use firewall for the Mac designed specifically to monitor and, if needed, block outgoing network connections made by your Mac and its many apps.
Screen shot © Coyote Moon, Inc.
Unlike other outgoing firewall apps, Radio Silence uses a minimal, non-intrusive user interface that doesn’t try to get your attention with pop-ups or alerts every time an app opens or performs some new task.