SciTechBlog   « Back to Blog Main
November 12, 2008

Keyboards are silent transmitters

Posted: 09:37 AM ET

Your wireless internet connection is secure, you have anti-virus software, and your firewall is up.  You think you are safe from identity theft but there is a new way to gather information from your computer.  An internet connection is not even needed.83263989


This time the culprit is your keyboard.  With each keystroke a slight electromagnetic wave is emitted.  A simple wire cable or a small antenna can pick up these waves. With the right computer software keystrokes are deciphered.   These waves can even travel through walls.


11 different PS/2, USB and laptop keyboards were tested by Sylvain Pasini and Martin Vuagnoux.  They are doctorate students at the Security and Cryptography Laboratory at the Ecole Polytechnique Fédérale de Lausanne in Switzerland.  For their experiment they attached a keyboard to a laptop that was running off of battery power. They unplugged the laptop to prevent electrical interference.  Each one of the keyboards tested was vulnerable to at least one of the four detection methods that Sylvain and Martin have discovered.  So far they have been able to detect keystrokes up to 65 feet away.  They believe a farther distance can be achieved by using better equipment.


Both Pasini and Vuagnoux blame computer manufacturers for this vulnerability.  However, the security risk could be lowered by tweaking the production of keyboards.


Do you feel that this could be a legitimate threat as ATM pads are even vulnerable according to Pasini and Vuagnoux?


Chris Piatt      CNN Science and Technology


Filed under: computers • consumer tech

Share this on:
leonhf69   June 6th, 2018 1:19 am ET

Updated project call:

frederickuo2   June 6th, 2018 11:19 pm ET

Started unusual snare predict
www free chat rooms black and white dating website save the date envelopes local speed dating cougars women

ceceliabd4   June 9th, 2018 5:30 am ET

My new page
superheroes masjid beirut britain december

neilhl69   June 20th, 2018 3:37 am ET

Updated project call:

helgaqn18   July 12th, 2018 9:14 am ET

New sissy girls blog website
baby clothes store sissy bar backpack breast enlargement cylinders
ladies shoes sale online boys clothes ШЩЇШ§ШіШЄШ§Щ† ЩЃЫЊЩ„Щ… ШіЪ©Ші hentai comics free online softail front fender santa cartoons funny muslim clothes for women feminist pregnancy

byronvw11   July 13th, 2018 12:27 am ET

Hi new website
freew arabic dating sites dating russian guys jewish dating london bdsm datinng site free persian dating websites

jayneeq2   July 18th, 2018 6:41 pm ET

Proposal page moved:

marciaoj4   July 19th, 2018 2:03 am ET

Hi supplementary website
dating danish women dating sites for farmers free dating site in scotland philippines singles dating site adult dating tips

betsypn3   July 29th, 2018 9:30 pm ET

Modern web work:

shellykn3   October 16th, 2018 8:56 am ET

Hi fashionable website
free video pornography videos erotic night writing eroptic literature erotic java games

enidyx1   October 23rd, 2018 2:46 am ET

Fresh home page after throw:

hilaryro4   October 29th, 2018 7:29 am ET

Prepare recto moved:

rowenawk16   October 29th, 2018 7:50 am ET

My creative entanglement contract:

allielr11   November 7th, 2018 4:41 pm ET

My new entanglement outline:

williamrf16   November 9th, 2018 3:14 pm ET

My new blog project
young male gays feminizing surgery all inc holidays
shop for clothes online hollywood top movie list man to woman stories video chat dating old mature lady porn stop drinking hypnosis male to female breast surgery a name girl baby

bernardwd60   June 20th, 2019 5:07 am ET

Hot photo galleries blogs and pictures

tranny shemale porn tube native american porn photos delilah stone tube porn ntfs recovery porn condom bursts in pussy porn

jamienv16   July 6th, 2019 6:13 am ET

Sexy pictures each day

bbq porn girls t t boy porn youtube sexe porn powered by vbulletin dali porn uncensored jap porn

deannelu3   July 15th, 2019 3:37 am ET

Hardcore Galleries with hot Hardcore photos

tijuana petros chick porn free private chats porn asian night invasian porn millions of porn pics free porn by

katherynwq60   July 20th, 2019 11:37 am ET

Enjoy daily galleries

alvin and the shipmunks porn marquez porn star porn 4free black tranny free porn terri geramn porn

claudinecj1   July 26th, 2019 9:01 pm ET

Hot galleries, thousands new daily.

jesse ventura porn images amateur submitted porn vote non porn large penis pics suki porn porn host quality videos

judyrd1   January 14th, 2020 7:59 pm ET

Sexy pictures each day

hottest new porn starts creampie cocktail porn gianna michaels porn vedeos yahoo porn videos fak dok porn

detectives privados antequera   December 11th, 2020 9:27 pm ET

detectives privados antequera

Emmitt Sleger   December 14th, 2020 12:04 am ET

World's most powerful link building and traffic genarator software. Click on my profile name for more details

Lawanda Dibartolo   December 20th, 2020 3:07 pm ET

Youre so cool! I dont suppose Ive read something like this before. So nice to find somebody with authentic ideas on this subject. realy we appreciate you starting this up. this amazing site can be something that’s needed on the internet, somebody with a bit of bit originality. helpful purpose of bringing interesting things to the web!

700k passive income system   December 26th, 2020 9:50 am ET

MONSTERMODE 700K is a cutting-edge funnel-based app that can generate 100 commissions – – 90 Second Set Up – Beta Tested Proven 24-7 AUTOPILOT Income – 100 FREE Multi-Tier Traffic Built In More details:

Robetic   December 28th, 2020 10:54 am ET

Restoration of baths [url=][/url]

Beckie Mcclennon   January 8th, 2021 1:14 am ET

Hello there, simply turned into alert to your weblog through Google, and found that it is really informative. I’m gonna watch out for brussels. I’ll appreciate in case you continue this in future. A lot of other folks can be benefited from your writing. Cheers!

Kenneth Fritsch   January 11th, 2021 12:36 am ET

Shala Leachman   January 11th, 2021 1:52 am ET

Lakeesha Organ   January 11th, 2021 9:34 pm ET

I really love to read this post and I am glad to find your distinguished way of writing the post. Thanks and Regards

breast enlargement   January 17th, 2021 4:05 pm ET

You are so awesome! I do noot believe I've truly read through something like this before.
So great to find another person with a few unique thoughts on this subject.
Seriously.. thank you for starting this up. Thiss site is something that is needed on the
internet, someone with some originality!

Leave Your Comment


CNN welcomes a lively and courteous discussion as long as you follow the Rules of Conduct set forth in our Terms of Service. Comments are not pre-screened before they post. You agree that anything you post may be used, along with your name and profile picture, in accordance with our Privacy Policy and the license you have granted pursuant to our Terms of Service.

subscribe RSS Icon
About this blog

Are you a gadgethead? Do you spend hours a day online? Or are you just curious about how technology impacts your life? In this digital age, it's increasingly important to be fluent, or at least familiar, with the big tech trends. From gadgets to Google, smartphones to social media, this blog will help keep you informed.

subscribe RSS Icon
Powered by VIP