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1998-11-02 - Re: TEMPEST laptops

Header Data

From: Lucky Green <shamrock@cypherpunks.to>
To: Bill Stewart <bill.stewart@pobox.com>
Message Hash: a25f13f91090db3566872e06876955b81d83acaf852c33f32076db8f1cd62b23
Message ID: <Pine.BSF.3.96.981102022851.18391A-100000@pakastelohi.cypherpunks.to>
Reply To: <3.0.5.32.19981101142536.008aee30@idiom.com>
UTC Datetime: 1998-11-02 02:01:42 UTC
Raw Date: Mon, 2 Nov 1998 10:01:42 +0800

Raw message

From: Lucky Green <shamrock@cypherpunks.to>
Date: Mon, 2 Nov 1998 10:01:42 +0800
To: Bill Stewart <bill.stewart@pobox.com>
Subject: Re: TEMPEST laptops
In-Reply-To: <3.0.5.32.19981101142536.008aee30@idiom.com>
Message-ID: <Pine.BSF.3.96.981102022851.18391A-100000@pakastelohi.cypherpunks.to>
MIME-Version: 1.0
Content-Type: text/plain



On Sun, 1 Nov 1998, Bill Stewart wrote:
[...]
> Just using a regular laptop isn't enough; I've seen laptops
> transmit recognizable images to a television (though I was probably
> using AC power rather than batteries, and may or may not have had
> the display mode set to LCD-and-monitor.)

Thanks for touching on the popuar myth that laptops radiate less than
CRT's. Many laptops in fact radiate more compromising emissions than
CRT's. Ross Anderson does his van Eck demos to undergrads using a laptop,
because it works so much better than CRT's.

-- Lucky Green <shamrock@cypherpunks.to> PGP v5 encrypted email preferred.

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