[Cryptography] Wi-Fi beacon frame responses

[Henry Baker]

The longest distances I've heard of for Wi-Fi are about 30 miles line of sight on a dry day.

30 miles straight up is 150k feet of altitude; balloon height, but not satellite height.

But Baltimore apparently now has 24x7 airplane and/or drone video surveillance coverage.

It wouldn't be difficult for these flying platforms to do at least Wi-Fi, but probably considerably more.

Bluetooth might be harder, but even more revealing: e.g., every time I'm on an airplane, my Bluetooth lights up with 100 or so phones & laptops.  I haven't searched for low power Bluetooth (BTLE), but I suspect there may be a few BTLE heart rate monitors on the airplane, as well.

As Michael Hayden famously said, "we kill people based on metadata"; translation: "we kill people based on Wifi/Bluetooth MAC's".

At 08:43 AM 3/13/2018, Ryan Carboni wrote:
>Uh, you do realize that US spy satellites probably record all Wi-Fi beacon frame responses right?