Re: Is a full collapse possible?

Hi Marcus,

> Marcus J. Ranum, April 17 2009:
>
> We can worry about the motives of human agents, but
> doesn't it seem much more likely that some piece
> of self-replicating code will get into one of these
> SCADA systems and crash it all to hell? The end
> result is the same.

That already happened, in January 2003, with Slammer worm.
Excert from "SCADA SECURITY – ADVICE FOR CEOs" by the Austrialian government:
"At the Davis-Besse nuclear power plant in Ohio USA, worm activity on the
Process Control Network blocked SCADA traffic causing the operators to lose
some degree of control of the system. As a consequence, the plant’s Safety
Parameter Display System and Plant Process Computer were downed for four
hours, fifty minutes and six hours, nine minutes respectively."
http://www.ag.gov.au/agd/WWW/rwpattach.nsf/VAP/(930C12A9101F61D43493D44C70E84EAA)~SCADA+Security.pdf/$file/SCADA+Security.pdf

Ever with strong evidence, they will never learn! :(

JDG

"Reality is that which, when you stop believing in it, doesn't
go away." Philipp K. Dick