DV Hardware - bringing you the hottest news about processors, graphics cards, Intel, AMD, NVIDIA, hardware and technology!
   Home | News submit | News Archives | Reviews | Articles | Howto's | Advertise
DarkVision Hardware - Daily tech news
April 25, 2019 
Main Menu
News archives

Who's Online
There are currently 79 people online.


Latest Reviews
Ewin Racing Flash gaming chair
Arctic BioniX F120 and F140 fans
Jaybird Freedom 2 wireless sport headphones
Ewin Racing Champion gaming chair
Zowie P-TF Rough mousepad
Zowie FK mouse
BitFenix Ronin case
Ozone Rage ST headset

Follow us

Stealing data from airgapped PCs via speakers

Posted on Tuesday, March 13 2018 @ 15:49:05 CET by

Cybersecurity researchers from Israel's Ben-Gurion University of the Negev published an academic paper that highlights how it's possible to steal data from airgapped PCs using speakers or headphones. It's not really a major secret, but it's possible to turn a speaker into a microphone. This basically enables inaudible ultrasonic sound wave transmissions between two speakers or headphones. This feature is possibly via "jack retasking", a feature enabled by various audio chipsets. Full details The Register.
MOSQUITO, the researchers explain, demonstrates that speakers can covertly transmit data between unconnected machines at a distance of up to nine meters. What's more, the technique works between mic-less headphones – the researchers say their work is the first to explore headphone-to-headphone covert communication.

Speakers, the paper explains, can be thought of as microphones working in reverse: Speakers turn electrical signals into acoustic signals while microphones turn acoustic signals into electrical ones. And each includes a diaphragm to assist with the conversion, which can help reverse the process.

Modern audio chipsets, such as those from Realtek, include an option to alter the function of the audio port via software, the paper explains. This capability is referred to as "jack retasking."
Air gapping circumvent via speakers



DV Hardware - Privacy statement
All logos and trademarks are property of their respective owner.
The comments are property of their posters, all the rest © 2002-2019 DM Media Group bvba