To address these issues, the top priority when enabling cybersecurity is to allow only necessary traffic on mission-critical networks. In other words, you need to create a “clean” network environment to protect smart machines, production lines and ultimately your entire factory. This level of protection is achieved with industrial firewalls and other industrial networking devices that comply with the IEC 62443 industrial security standard. IEC 62443 defines guidelines for different parts of a network and those who perform different responsibilities on the network.
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