Information Leakage from Optical Emanations.

[Cian O'Connor]

Can LEDs flash fast enough for this to be possible? I
mean even for a 56KB modem, that's 56000 flashes a
second. For a harddrive forget it. Plus the simple
question of who would go to the effort of making a
status light corresond to every bit going through the
system...

--- Kevin Robert Dean <qualiall_2 at yahoo.com> wrote: >
Computer spy methods discovered in LED lights 
> 
> REUTERS [ THURSDAY, MARCH 07, 2002  12:47:10 PM ] 
>  
> SAN FRANCISCO: By monitoring the flashes of LED
> lights
> on electronics equipment and the indirect glow from
> monitors, scientists in the United States and the
> United Kingdom have discovered ways to remotely
> eavesdrop on computer data.
> 

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