alt Hacker NewsDownload use Little Snitch or
https://alternativeto.net/software/little-snitch/
https://www.g2.com/products/little-snitch/competitors/altern...
There are many alternatives for trying to find out what’s going on. If you don’t want to bother, and most people don’t, well, what else is there to say?
It is generally a good idea to know what software is phoning home, if you can pinpoint it.
If you have any software recommendations, I’d be happy to know.
It's more complex than that. LittleSnitch or other application firewalls won't help when programs like package managers legitimately need to access the Internet. And figuring what what is being sent would require decrypting the traffic. There is no easy way to figure out if Apple or some rogue app is siphoning off your home directory.