One thing that's not clear from the article - are external headphones required for this to work? Can this not be done with the built-in speakers?
Headphones can be hijacked to surreptitiously record audio
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Re: Headphones can be hijacked to surreptitiously record audio
#72Earlier quoted context omitted.
> Its not just recordings, but raw material to be edited and spliced together. "If one would give me six lines written by the hand of the most honest man, I would find something in them to have him hanged." ~ Cardinal Richelieu
Well, his thing was a culture where everyone was guilty of something and punishment was pretty harsh. To some extent like now. I'm sure I'm not recycling all my garbage precisely legally and that cap needs to be on (or off?) the creamer and I certainly was guilty of speeding this morning like everyone else on the road. I meant just outright fabrication. Record one conversation about my coworker being on vacation in n…
Re: Headphones can be hijacked to surreptitiously record audio
#73Earlier quoted context omitted.
For starters, the fact that RealTek is so easily reprogrammable to turn audio output into input is very unlikely just a "bug". It's a feature left their on purpose.
It's a selling point. You plug anything at the back then change the jack's purpose in the control panel gui for the audio card.
Re: Headphones can be hijacked to surreptitiously record audio
#74One thing that's not clear from the article - are external headphones required for this to work? Can this not be done with the built-in speakers?
Re: Headphones can be hijacked to surreptitiously record audio
#75Re: Headphones can be hijacked to surreptitiously record audio
#76One thing that's not clear from the article - are external headphones required for this to work? Can this not be done with the built-in speakers?
It seems like something that would work for built-in speakers too. They're driven by the same audio codec chips (eg realtek), but wired directly instead of through an external socket.
Re: Headphones can be hijacked to surreptitiously record audio
#77Re: Headphones can be hijacked to surreptitiously record audio
#78Earlier quoted context omitted.
The error changes from not found to access denied.. Do you have a link to the paper?
Use f.e google cache to read it: cache: http://cyber.bgu.ac.il/advanced-cyber/system/files/SPEAKE%28...
http://webcache.googleusercontent.com/search?q=cache%3Ahttp%...
(I'm getting `access denied' on the original now too, but the Google cache link works.)
Re: Headphones can be hijacked to surreptitiously record audio
#79makes me wonder if the same thing goes for screens, because the reverse photoelectric effect in LEDs can be reversed.
Apple files patent for camera hidden behind display http://appleinsider.com/articles/09/01/08/apple_files_patent...
Re: Headphones can be hijacked to surreptitiously record audio
#80The bit you want to know: > Their malware uses a little-known feature of RealTek audio codec chips to silently “retask” the computer’s output channel as an input channel