Slammer worm crashed Ohio nuke plant network

[Dave Farber <dave () farber net>]

> Date: Tue, 19 Aug 2003 15:06:38 -0700
> From: "Kevin L. Poulsen" <klp () securityfocus com>
> Subject: Slammer worm crashed Ohio nuke plant network
> To: dave () farber net
>
>
>
>
> Slammer worm crashed Ohio nuke plant network
>
> http://www.securityfocus.com/news/6767
>
> By Kevin Poulsen, SecurityFocus
>
> The Slammer worm penetrated a private computer network at Ohio's
> Davis-Besse nuclear power plant in January and disabled a safety
> monitoring system for nearly five hours, despite a belief by plant
> personnel that the network was protected by a firewall, SecurityFocus
> has learned.
>
> The breach did not post a safety hazard. The troubled plant had been
> offline since February, 2002, when workers discovered a 6-by-5-inch hole
> in the plant's reactor head. Moreover, the monitoring system, called a
> Safety Parameter Display System, had a redundant analog backup that was
> unaffected by the worm. But at least one expert says the case
> illustrates a growing cybersecurity problem in the nuclear power
> industry, where interconnection between plant and corporate networks is
> becoming more common, and is permitted by federal safety regulations.
>
> The Davis-Besse plant is operated by FirstEnergy Corp., the Ohio utility
> company that's become the focus of an investigation into the
> northeastern U.S. blackout last week.
>
> <snip>

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