Marc may be right that only 500 people understand the ins and outs of the ever-changing network of control. Just a few short years ago, that number was probably considerably lower. Until recently, nobody needed to know network security in plants. the plants were islands. That's changed. Now the plant is networked to the ERP system, to customers, to vendors, to suppliers. And IT is breathing down the next of the control engineer about cell phones in the plant and downloaded music on plant PCs. The world of the control system has changed, and it's relatively new.
Excellent post, Rich. Security on the control side is an important issue. But it's also interesting that many of the vulnerabilities are related to apps and casual administration of access permissions.
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Noting that we now live in an era of “confusion and ill-conceived stuff,” Ammunition design studio founder Robert Brunner, speaking at Gigaom Roadmap, said that by adding connectivity to everything and its mother, we aren't necessarily doing ourselves any favors, with many ‘things’ just fine in their unconnected state.
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