The enterprise zone network will see web traffic using the HTTP or HTTPS protocols, email in the form of IMAP, POP3, and SMTP, file transfer and sharing protocols such as FTP and SMB, and many others. All these protocols come with their own security challenges and vulnerabilities. If your ICS network (Industrial zone) and the business network (enterprise zone) use the same physical network, these vulnerabilities can directly affect your production system. Having a common network for business systems and production systems is an insecure practice that is seen all too often still. More on this topic will be discussed in a later chapter.
The enterprise zone is where a plant or facility is connected ...
