In a company not really far away and only years ago, I was evaluating a
computer with a (then new) CD drive. I discovered there was no bypassing on
the headset line ("What for?. it's only audio!") and was able to show our
Board -- then touring the EMI lab -- that we could hear on the spectrum
analyzer's speaker the music being played.
IIRC,we shipped that model with plastic rivets glued into the headphone jacks.
TEMPEST techniques are merely physics. A lot of folks have worked in the
field, but, true to the oath of secrecy, remain close-mouthed about what can
be done, has been done -- and might be done. Some day an irate Congressman
will explode: "You mean you knew FIFTY YEARS AGO and didn't TELL us?"
Yup.
Cortland Richmond KA5S
GE Aviation
Words and opinions my own, not my employer's
----- Original Message -----
From: Price, Edward <mailto:[email protected]>
To: [email protected]
Sent: 7/13/2009 6:26:24 PM
Subject: FW: WHAT GOES AROUND COMES AROUND
From: Price, Edward
Sent: Monday, July 13, 2009 10:21 AM
To: [email protected]
Subject: RE: WHAT GOES AROUND COMES AROUND
Bill:
Same idea, but a different vulnerability. The prof was Wim Van Eck, and
he
demonstrated retrieving video images from monitor radiation circa 1985. Again,
this was common knowledge among security guys, but he introduced the
phenomenon to the public.
Ed Price
[email protected] <blocked::mailto:[email protected]> WB6WSN
NARTE Certified EMC Engineer
Electromagnetic Compatibility Lab
Cubic Defense Applications
San Diego, CA USA
858-505-2780
Military & Avionics EMC Is Our Specialty
________________________________
From: [email protected] [mailto:[email protected]] On Behalf Of
Bill Owsley
Sent: Monday, July 13, 2009 9:40 AM
To: [email protected]; Derek Walton
Subject: Re: WHAT GOES AROUND COMES AROUND
Around 1980 a guest professor demonstrated that technique using radiated
emissions. The receiving equipment fit into a large briefcase.
- Bill
Indecision may or may not be the problem.
--- On Mon, 7/13/09, Derek Walton <[email protected]> wrote:
From: Derek Walton <[email protected]>
Subject: WHAT GOES AROUND COMES AROUND
To: "[email protected]" <[email protected]>
Date: Monday, July 13, 2009, 12:30 PM
http://news.bbc.co.uk/2/hi/technology/8147534.stm
-
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This message is from the IEEE Product Safety Engineering Society emc-pstc
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