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Wireless technology has aroused as much interest as it has skepticism in the industrial control systems industry. While many recognize the easier installation and reduced costs, others question the reliability and security of wireless networks. The principle requirement of industrial wireless technology is clear: It must be robust, reliable, cost-effective, and completely secure. Despite the benefits, the adoption of wireless networks has been gradual in the industry due in part to security concerns. For industrial facilities, the increased vulnerability of the enterprise resulting from open wireless architectures, coupled with a rise in cyber attacks, has made electronic security a major concern. One can no longer take for granted the integrity of vital assets, including operational processes, network architectures, and business applications.
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