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I remember when the primary threat you considered when setting up your firewall was hackers trying to infiltrate your network. Increasingly I find myself using my firewall to sandbox devices already on my LAN and preventing them from phoning home to exfiltrate.

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My thoughts exactly. And even this seems to be getting harder. I keep reading about "smart" TVs which barely function if they're not allowed to phone home, and IOT devices which query their own hardcoded DNS servers, ignoring whatever your DHCP server has told them to do.

I think it's only a matter of time before we start seeing more and more of these things with built in cellular modems which can't be disabled. Makes me want to start stockpiling older technology in order to prepare for a time when every single available lightbulb, washing machine, TV, or vacuum cleaner has to be online all the time and controlled by some privacy destroying app.

I'm only half joking when I say that I can imagine a future where something purely mechanical is considered the height of luxury. Look at this! A door lock with a metal key which doesn't log and transmit the comings and goings of your family and friends. Incredible! If only we could afford such a thing, but there are only a few artisans left in the world who can make them...

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