I can't imagine using a Mac without Little Snitch: https://obdev.at/products/littlesnitch

Among other things, it is disturbing how chatty a lot of things are. (Did you know Apple Mail keeps track of which account you email different people with and wants to send that to configuration.apple.com, even if you have carefully disabled everything Icloud related?)

There's a similar tool for Linux, but I usually keep a networkless VM around for playing with potentially sketchy things.

Closed source, monitors everything on the machine.

How much do you trust little snitch?

And then asking to keep a copy of your drivers license for ten years is a complete non starter. (Yes, that's in their privacy policy)

There is a section about being required by the EU to determine location for VAT collection purposes. If their payment processor can’t determine your location sufficiently, then they have to collect data identifying your location and store it for tax/proof purposes. That’s something they don’t want to ever have to do, obviously.

Here’s a link to the policy: https://www.obdev.at/privacy/index.html

On Linux there is OpenSnitch. A bit rough around the edges, but does what it needs to do well.

Thank you.

On the mac there's Little Snitch.

Any Windows equivalent?

Fiddler is fantastic: https://www.telerik.com/download/fiddler

I also would like to know this.