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by quickthrower2 2557 days ago
That's the premise behind most security software. We can't trust the internet, so download a firewall from the internet to block traffic from the internet.
1 comments

The software you download is generally signed by a party that you do trust though, and then runs locally on your computer.

And of course, that also doesn't really apply if you're using an operating system that includes a firewall by default.