The heart of making strategic IT decisions relies on what is supposed to be an accurate and complete global data map, along with a similarly correct and comprehensive asset map. Sadly, no enterprise has that today and, to be candid, probably never did.
There are always problems gaining full visibility today into anything IT-related, but as the enterprise environment has changed in recent years, the age-old IT nemesis, shadow IT, is still a major factor.
This problem has gotten a lot worse during the last few years because of several issues. Beyond the growth of IoT and OT devices, and partners and customers gaining network privileges, the biggest change is the avalanche of home offices and the lack of consistency or standards across those remote sites. Routers can be from any vendor and associated with any carrier. Hardware firewalls may or may not exist — and may or not ever get patched if they do exist. Most LANs are wild west, with access granted to anyone (like, perhaps, the boyfriend of the employee’s teen-age daughter).
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Source:: Computerworld