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OPC Security Whitepaper #3Hardening Guidelines for OPC Hosts

In recent years, Supervisory Control and Data Acquisition (SCADA), process control and industrial manufacturing systems have increasingly relied on commercial Information Technologies (IT) such as Ethernet™, Transmission Control Protocol/Internet Protocol (TCP/IP) and Windows® for both critical and non-critical communications. This has made the interfacing of industrial control equipment much easier, but has resulted in significantly less isolation from the outside world, resulting in the increased risk of cyber-based attacks impacting industrial production and human safety.