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Open source laser microphone picks up laptop keystrokes
(www.wired.com)
Another great reason to use a custom, constantly shifting keyboard layout
RIP touch typing
I use blank key caps, and I find it leads to much more comfortable touch typing.
Slower, sure, but cozier also
fiojvd gff uiig fvg. Hh
Exactly
Why would blank keycaps matter for touch typing
It's just a question of matching pattern with most used words against languages...
The article doesn't mention how it compensates for different keyboards. Like wouldn't different switches and wear change the sound?
That's because it's Wired. Basically a big ass advertisement.
It sounds like bs but its cause that's been solved since around Roman times, heres a pretty interesting website on the technique
Dude in the thumbnail looks like an un-and-coming Bond villain.
Dude in the thumbnail is Samy. He's been a bond villain for a long time now.
Laughs in DVORAK. This is some pretty funny Schitzotroll.
it's heuristic, so it doesn't matter what layout you use.
Ah fuuck
My keyboard is loud enough that it can be heard that far away anyway
Make it a UV laser and it would be invisible.
demonstrating that he can point a laser that's invisible to the human eye at a faraway laptop, through a window, and detect the computer's vibrations to reconstruct virtually every character typed on it
Infrared is not visible
Infrared doesn't pass through windows.
actually thats UV. transition lenses won't change with a glass window thats not open. infrared is basically heat and does indeed pass through. Cars in the sun would not get hot so fast if they did not let in infrared.
I have an IR camera and windows look like mirrors. Might depend on the type of glass idk.
if this yahoo from the internet I found in a search is right then its both:
"Glass will bock low frequency IR (red hot), but allow the passage of high frequency (white hot) IR. Hence, the heat of the sun will easily pass into a greenhouse, but once this energy is converted into low frequency heat by the objects within that absorb it, then the resulting low frequency heat is trapped. Hence, the Greenhouse Effect."
That makes a lot of sense, thanks for doing the homework!
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It's already infrared. Also, UV is partially visible to humans in some scenarios.
he look silly
And perhaps he was named Billy
And perhaps he has a willy.
Uhm... what was the topic again?
So they can hear me type p + enter into my browser?
Ah, another pterodactyl aficionado!
Great, now hackers and spies can detect my typing instead of using RATs or Trojans or packet sniffers, or just beating me with a $5 wrench (XKCD)
Also:
The trick, which takes advantage of the subtle acoustics created by tapping different keys on a computer, works even without a view of the computer's keyboard, so long as the hacker has a line-of-sight view of any relatively reflective portion of the target laptop.
So... Closing the curtains is all it takes to defeat this amazing technological method. GG.
I'm not sure why you're so dismissive of this? It's kind of asinine.
Does everyone everywhere only ever use computers in an enclosed room? Is everyone with something value to exfiltrate easily accessible to kidnap and beat with a wrench?
This is valuable for corporate espionage, political purposes, or for nation states. If miniaturized, even easier for targeted attacks where it might be difficult to inject malware, or for broad attacks on office workers.
And the best part is that it doesn't leave a trace which beating someone with a wrench and malware would do....
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On screen keyboard rides again!
Binoculars
Came to find out about the audio quality of this exceptional microphone.
:(
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this post was submitted on 13 Aug 2024
260 points (98.5% liked)
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