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It is hard to disagree with this approach. While I still use WiFi, it is a separate subnet and only whitelisted MACs are allowed to use it. Cameras and microphones are always unplugged when not in use, and my phone runs GrapheneOS. I also removed the hands-free microphone in my car, as well as the cellular modem.
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Is MAC whitelisting anything but security theater? Isn't it trivial to determine a valid client MAC then spoof it?
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What makes you say that? It does not seem trivial at all to guess a valid MAC.
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It's not just a guess.

Any decent sniffer (e.g. airsnort) can immediately identify all associations between all WiFi/Bluetooth devices. DD-WRT (router firmware/OS) has this WiFi-associations detector built-in ("local WiFi map"). There is no need to attempt any sort of hack — associations are publicly-broadcast information.

Then, just pick any authorized MAC and duplicate as your own.

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The MAC addresses of all the Wi-Fi clients are broadcasted in plain radio format all over the 2.4GHz. It is trivial.
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It's in managmenet frames that you can sniff.
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Does wpa3 pmf fix this particular issue?
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This isn't considered "broken" — it's part of how WiFi works/associates.
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You would like the film The Conversation (1974).
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Enemy of the State is a pretty good light weight successor of that movie as well. It's such a fun watch too. (RIP Gene Hackman)
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For a second I thought this was the Mel Gibson movie where he proves a Conspiracy Theory (1997)... but Gene Hackman, post-Watergate — with an ensemble cast of eavesdroppers?! — tonight's movie, decided.

Thank you for your recommendation - it be crazy up in here (head, country, world).

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One fan theory is that Gene Hackman plays the same character, decades later, in Enemy of the State (1998).
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I'll have to rewatch EofState, after tonights Conversation.

Fan theories are the only way I ever finished DFWallace's trifecta (2000 pages of gruelling chaos). Thank god for fans.

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Directed by Francis Ford Coppola, Palme d'Or at Cannes, three Oscar nominations including Best Picture (which, amusingly, it lost to The Godfather Part II).

Great movie.

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In all fairness, Part II is absolutely incredible storytelling.

Are you suggesting The Conversation is even better?! So excited for tonight's showtime — I'll make an updated reply here, tomorrow morning (with my viewreport).

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I think they were simply musing as to how one Coppola film lost to another.
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… also starring Harrison ford…
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I'm watching this right now... Ford is ssoo yyoouunngg!

It also has Frodo from Godfather.

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