nanog mailing list archives
OT: Traffic Light Control (was Re: First real-world SCADA attack in US)
From: Jay Ashworth <jra () baylink com>
Date: Tue, 22 Nov 2011 11:16:54 -0500 (EST)
----- 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
Current thread:
- OT: Traffic Light Control (was Re: First real-world SCADA attack in US) Jay Ashworth (Nov 22)
- Re: OT: Traffic Light Control (was Re: First real-world SCADA attack in US) Brett Frankenberger (Nov 22)
- Re: OT: Traffic Light Control (was Re: First real-world SCADA attack in US) Jay Ashworth (Nov 22)
- Re: OT: Traffic Light Control (was Re: First real-world SCADA attack in US) Brett Frankenberger (Nov 22)
- Re: OT: Traffic Light Control (was Re: First real-world SCADA attack in US) Owen DeLong (Nov 22)
- Re: OT: Traffic Light Control (was Re: First real-world SCADA attack in US) Jay Ashworth (Nov 23)
- Re: OT: Traffic Light Control (was Re: First real-world SCADA attack in US) Jay Hennigan (Nov 23)
- Re: OT: Traffic Light Control (was Re: First real-world SCADA attack in US) Jay Ashworth (Nov 23)
- Re: OT: Traffic Light Control (was Re: First real-world SCADA attack in US) Jay Hennigan (Nov 23)
- Re: OT: Traffic Light Control (was Re: First real-world SCADA attack in US) Jay Ashworth (Nov 22)
- Re: OT: Traffic Light Control (was Re: First real-world SCADA attack in US) Brett Frankenberger (Nov 22)
- Re: OT: Traffic Light Control (was Re: First real-world SCADA attack in US) Bryan Fields (Nov 23)