[SystemSafety] The Intertwining of Safety and Security

Peter Bishop pgb at adelard.com
Fri Nov 11 10:49:27 CET 2016


Re forcing a reactor to scram

That can be done pretty easily right now by attacking the grid
connection. With nowhere to send the power, the reactor is forced to
shut-down.

Grid disconnection could achieved via a crude physical attack on a pylon
or a more subtle attack on a computer controlled substation.

Peter Bishop

On 11/11/2016 08:01, Peter Bernard Ladkin wrote:
> Last Monday, I pointed out by means of a somewhat theoretical example that IACS safety and
> cybersecurity are intertwined. Also, that some people in industry (and in standardisation) think you
> can keep them separate.
> 
> I was looking to construct a concrete but hypothetical example that fit the precepts of IEC 61508,
> which governs the derivation and implementation of safety requirements in IACS. I think I have found
> one. I invite readers to see if they agree.
> 
> https://abnormaldistribution.org/index.php/2016/11/11/iacs-safety-and-security-intertwined-a-realistic-example/
> 
> PBL
> 
> Prof. Peter Bernard Ladkin, Bielefeld, Germany
> MoreInCommon
> Je suis Charlie
> Tel+msg +49 (0)521 880 7319  www.rvs-bi.de
> 
> 
> 
> 
> 
> 
> 
> _______________________________________________
> The System Safety Mailing List
> systemsafety at TechFak.Uni-Bielefeld.DE
> 

-- 

Peter Bishop
Chief Scientist
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