"Just as various automation systems, including SCADA, once only existed in silos, machine- and process-generated data has typically been isolated from other business systems. This has been the result of proprietary protocols and networking challenges."
No, this is also because business systems are inherently insecure. In some process' the consequences of a hacked system are limited to equipment damage and lost production. In many others it may include loss of life inside, and perhaps outside the facility.
We often isolate automation systems in the interest of safety, not because the networking challenges are beyond us. We built this stuff. We can make it communicate. The question is can the IT infastructure keep it safe? Experience says they can not. Every day data that is supposedly "secure" behind multiple firewalls is hacked, stolen, and altered even in large companies with huge IT budgets.
This entire thing reads like another IT guy lusting to get "all that data" (Big Data) into HIS system. This is often a very bad idea and increasing happens anyway because IT has high level corporate access and political clout.
Get ready to pay your stupid taxes. I hope you don't kill anyone while you are paying them.
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