Son of a Witch, Resonator Guitar

Video title: “SON OF A WITCH” | DARK SWAMP BLUES on the Dobro Duolian Resonator Guitar
Posted by: Justin Johnson
URL: https://www.youtube.com/watch?v=J46sRuj99Cw
Date posted: Aug 10, 2020

keyboard typing sounds espionage

Errant thought this morning while typing on my computer/laptop keyboard:

A program might be able to decipher what is being typed simply by the different sounds each key makes and/or the rhythm of the words being typed.

There are several devices around the house which could be hacked to take audio recordings.

- The Alexa Echo Dot. Often we keep it unplugged, but sometimes I forget that it's still plugged in and turned on.

- The cams; on some of them, I've turned off audio recording, but it's hard to remember which ones and if I've changed the settings or not.

- The cell phones or laptops themselves, or the TV maybe, if they've been hacked to record audio when they aren't supposed to.


This 2005 article cited a study showing it was possible: Acoustic Snooping on Typed Information

The article comments indicate similar things have been done in the past, possibly all the way back to World War 2. So intelligence agencies most likely do have and use that kind of spying.

And if intelligence agencies are using it, it's not too far-fetched that serious & determined hackers could use it too. So that's another keylogging thing for me to be concerned about in addition to the wireless keyboard signals being snooped on.