February 2015, Vol. 242, No. 2

Features

RTU And Process Security From The Ground Up

Recent news regarding SCADA system intrusions has highlighted the security differences between network and s. SCADA system operators must assess vulnerabilities and implement security measures at both levels. The two-tiered, network/local-level model focuses on the technology that is typically applied and is significantly simplified when compared with those used by such industry standards as ISA/IEC 62443. The network level in a SCADA system includes personal computers, personal computer software and common networks such as Ethernet. In ISA/IEC 62443 terminology, it includes the enterprise zone and control center zone. This level shares many similarities across a broad range of

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