I rebuilt a corporate network for a relatively well known CGI company around a decade ago. They had chosen to use a subnet owned by a big tech company as their

I rebuilt a corporate network for a relatively well known CGI company around a decade ago. They had chosen to use a subnet owned by a big tech company as their internal network. Took me months to convince the CEO that a change was necessary. Ultimately they were unable to download something important that caused them to suddenly care.