[146786] in North American Network Operators' Group

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OT: Traffic Light Control (was Re: First real-world SCADA attack in

daemon@ATHENA.MIT.EDU (Jay Ashworth)
Tue Nov 22 11:17:56 2011

Date: Tue, 22 Nov 2011 11:16:54 -0500 (EST)
From: Jay Ashworth <jra@baylink.com>
To: NANOG <nanog@nanog.org>
In-Reply-To: <EB8F72EA-1E63-4C98-9214-6749A5D51B23@delong.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

----- Original Message -----
> From: "Owen DeLong" <owen@delong.com>

> As in all cases, additional flexibility results in additional ability
> to make mistakes. Simple mechanical lockouts do not scale to the
> modern world. The benefits of these additional capabilities far
> outweigh the perceived risks of programming errors.

The perceived risk in this case is "multiple high-speed traffic fatalities".

I believe we rank that pretty high; it's entirely possible that a traffic
light controller is the most potentially dangerous artifact (in terms of 
number of possible deaths) that the average citizen interacts with on a 
daily basis.
-- 
Jay R. Ashworth                  Baylink                       jra@baylink.com
Designer                     The Things I Think                       RFC 2100
Ashworth & Associates     http://baylink.pitas.com         2000 Land Rover DII
St Petersburg FL USA      http://photo.imageinc.us             +1 727 647 1274


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