Host-based application firewall
To manually install Little Snitch with Homebrew, use the following command:
Current version of #: 4.5.2
ARM: https://www.obdev.at/products/littlesnitch/releasenotes.html
Intel: https://www.obdev.at/products/littlesnitch/releasenotes.html
Website: https://www.obdev.at/products/littlesnitch/index.html