What is air-gapping, and why do we air-gap networks?What camp are you in? In the camp that believes in air-gaps, or the other set that says they truly do not exist?Air-gap networks are networks that are physically and logically isolated from other networks where communication between these networks is not physically or logically possible.
Over the years, many networks in many different verticals from governments, military, financial services, nuclear power plants and industrial manufacturing, to name a few, have been so-called “air-gapped.”In the industrial vertical, these air-gapped networks were the networks that supported the industrial control systems within the plant or factory where communication was physically or logically isolated between the plant and the enterprise networks.In today’s Industry 4.0 revolution where the network is the control system, analyzing data from the industrial process is key to drive optimization and efficiency, and where more and more field devices are “smart” (connected and managed through the network), is the notion of air-gapped industrial networks practical for the future or is there really an air-gapped network today?
s it effective? False sense of security?In theory, air-gapped networks seem like a good idea.
In practice, that is another story.Do they really guarantee isolation from the Internet or from the corporate business network? It has been proved in a number of different scenarios that air-gapped networks can be infiltrated. The most famous of these examples is Stuxnet, the worm that was able to target and disrupt the process of enriching uranium that could be used to manufacture nuclear ..
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