[SystemSafety] [EC 61508 and cybersecurity
RICQUE Bertrand (SAGEM DEFENSE SECURITE)
bertrand.ricque at sagem.com
Mon Jun 1 13:06:59 CEST 2015
It is not that simple.
Safety is a roughly 2D problem ( probability x consequence), the two dimensions being usually stable along the unique system timescale.
Security is a 3D problem with sub dimensions (attacker(motivation, capability), vulnerability(inherent, introduced), consequence), these dimensions being variable along two different timescales (target system timescale, attacker timescale).
Bertrand Ricque
Program Manager
Optronics and Defence Division
Sights Program
Mob : +33 6 87 47 84 64
Tel : +33 1 58 11 96 82
Bertrand.ricque at sagem.com
From: systemsafety-bounces at lists.techfak.uni-bielefeld.de [mailto:systemsafety-bounces at lists.techfak.uni-bielefeld.de] On Behalf Of Chris Hills
Sent: Monday, June 01, 2015 12:50 PM
To: martyn at thomas-associates.co.uk; systemsafety at lists.techfak.uni-bielefeld.de
Subject: Re: [SystemSafety] [EC 61508 and cybersecurity
I have always though that safety and security are two sides of the same coin. Often it is just a difference of emphasis or wording but the requirements are very similar if not the same.
The trouble is “cyber security” is the new buzzword so we need a standard for it….. Surely it is better build on 61508 for something that is both safe and secure?
Or do you want something that is secure but unsafe? ☺
Regards
Chris
Phaedrus Systems Ltd Tel: FREEphone 0808 1800 358
96 Brambling B77 5PG Vat GB860621831 Co Reg #04120771
Http://www.phaedsys.com<http://www.phaedsys.com/> chills at phaedsys.com<mailto:chills at phaedsys.com>
From: systemsafety-bounces at lists.techfak.uni-bielefeld.de<mailto:systemsafety-bounces at lists.techfak.uni-bielefeld.de> [mailto:systemsafety-bounces at lists.techfak.uni-bielefeld.de] On Behalf Of Martyn Thomas
Sent: 01 June 2015 10:09
To: systemsafety at lists.techfak.uni-bielefeld.de<mailto:systemsafety at lists.techfak.uni-bielefeld.de>
Subject: Re: [SystemSafety] [EC 61508 and cybersecurity
Where can I find details of the content of IEC 62443, and of the IEC workgroup?
Martyn
On 01/06/2015 09:42, RICQUE Bertrand (SAGEM DEFENSE SECURITE) wrote:
There is currently an IEC workgroup on what to do with IEC 61508 and cybersecurity (IEC 62443). The topic is thus not ignored.
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