Chapter 2
What Is the Internet?
We are in great haste to construct a magnetic telegraph from Maine to Texas; but Maine and Texas, it might be, have nothing important to communicate.
Forty years ago, a cybersecurity book would only be about the security of individual computers. There was no Internet. Since then, network technology has progressed and become ubiquitous to the point where, to recycle an old Scott McNeely quote, “The network is the computer.” We have LANs, WANs, MANs, Wi-Fi, Bluetooth, NFC, and more connecting our systems—and our systems of systems. In a growing number of instances, our software and data are somewhere “out there” in the cloud, and our systems cannot function as we wish without working network ...
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