“Security professionals need to step back from the technology and look at how these real-world systems — from prisons to power plants — are designed, said Tom Parker, vice president of security services at FusionX, a computer security company.
“We’re making the same mistakes over and over again,” he said, adding that these at-risk networking components are doing more than they were designed to do.”
Source: Hackers take aim at prison locks and other real-world targets – CNN.com