Best Free Firewall to Stop Outbound Connections on Mac If you're a macOS user, it's important to protect your computer from potential threats by stopping outbound connections on your Mac computer. LuLu, a free firewall application, can help you monitor your Mac's network connections and alert you whenever an application attempts to send data out of your computer.  Unlike the built-in Firewall application for Mac that blocks incoming network connections, LuLu lets you control outgoing connections. While several paid software options are available for monitoring and controlling outbound connections, LuLu is entirely free and user-friendly. However, if you're new to this type of software, it may take some time to get used to it.    In this tutorial, I'll guide you through the process of installing and setting up LuLu on your Mac step-by-step. Whether using macOS Big Sur, Monterey, or Ventura, you can easily install LuLu and enable your macOS to monitor outgoing connect...