A frequent complaint that I hear is "my IT department won't let us move to Creative Cloud because of data security fears." Adobe has created a PDF titled "Adobe Creative Cloud Security FAQ for IT". Contents include answers to questions such as "Where is Creative Cloud hosted?" and "Do the provided services support encryption?"
See also the Creative Cloud FAQ for more information about security.
Perhaps passing these resources on to your IT department will help "grease the skids" for your migration to Creative Cloud!