To Capdevielle, the air gap is a fallacy that provides a false sense of security. As he put it, “Air gapping does not exist. It is a myth. Most industrial control networks adopted the TCP/IP standard about seven years ago. Before then, they were on a different standard. Once you adopt the TCP/IP standard, there is a gravitational-like force to connect. It’s like saying that one group of folks are not going to talk to another group even though they just learned the same language and they’re intermingling. That just cannot be avoided. With the adoption of TCP/IP, industrial control networks adopted Windows machines as their primary form of control operating system and Windows machines need to be patched and updated.”

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