Since it hasn't been mentioned, I use this every day (mostly silent in the background): > LuLu is the free, open-source firewall that aims to block unknown out

Since it hasn't been mentioned, I use this every day (mostly silent in the background): > LuLu is the free, open-source firewall that aims to block unknown outgoing connections, protecting your privacy and your Mac! https://objective-see.com/products/lulu.html https://objective-see.com/products/lulu.html