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You're missing the bigger question: why? Encryption adds greatly to the coffee shop's cost. There are small one-time costs incurred when someone has to configure the access points, assign passwords, manage them, change them, post signs saying "this week's password is C0ffeebuck$" etc. There is an ongoing high payroll cost, too. Baristas are paid to ...


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There is no way to transmit data wirelessly without being susceptible to trilateration (using the standard definition of "radio wireless"). That's why attempts to "transmit data without revealing your location" usually end up shifting to things like laser, infrared, or other visible light methods. These things tend to work well in directional applications, ...


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Even with WPA2/AES, someone can see the password, or if that is not possible, here is a simple way:- See some people who come around daily. Get some backdoors or rootkits for them. It would require skill but anything on same network/file share can be hacked. Go in, connect to your internet, get the key, and voila. As simple as that. So no amount of ...


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This answer assumes that the adversary does have access to run-of-the-mill scanning direction finders (an example). Also, the adversary is sure to detect your transmission (otherwise, you'd be talking about LPI radio comms). For a "successful" transmission without being pinpointed to a single (true) location with some guaranteed accuracy, you have to know, ...



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