Securing process control network external cyber communications



n an ideal Process control data (Pcn) data security scenario, the PCN would not need to communicate with any external systems. Not only could an air-gap be created, providing excellent security, there would also be no costs for connectivity and security solutions. In the real world,however, sharing PCN data with external systems and accessing PCN systems from external sources is fast becoming a business necessity.

This following White Paper provides some generic guidelines for enabling secure connectivity between PCNs and external systems. Please note that there are enumerable security measures that one can apply to these communications, however, security is always a balance of:

•  The value of assets being protected
•  The cost of the security measures protecting the assets, and
•  The inconvenience imposed by the security measures.

This White Paper outlines one possible solution for balancing these factors.

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